Rina Hidaka

A career shaped by characters

Rina Hidaka (日高里菜, standard 高 — not Noriko Hidaka, the tall-髙 elder, who voices Shem-Ha in XV and is a different person entirely) voices Prelati, the youngest member of the AXZ Bavarian Illuminati trio. Her eighteen-year voice career has produced forty-plus character-song tracks across fourteen distinct roles, one named idol-unit era (RO-KYU-BU!), and an unusually dense SHOW BY ROCK!! thread. Zero of those tracks are released under her own name.

Where to start listening: track 1 — Yes!アイドル宣言 (2015) as Rosia — because Criticrista is Hidaka’s single biggest Spotify footprint, and no other track lets her vocal lead as directly as this one does inside a four-voice band.

A complete catalog with a different shape

Look at Hidaka’s Spotify artist page and there is no Hidaka discography. Every entry is a character credit — 綾野珪子, 香椎愛莉, ロージア, ローラ, ハードゴア・アリス, 六科なじむ — and the form persists across eighteen years. The generasia discography page summarizes it bluntly: “the only member of RO-KYU-BU! who has yet to make a solo music debut.”

This is not a catalog with a missing piece. It is a complete catalog with a different shape. Several artists in the cast have similarly character-song-coded non-Symphogear work — Shizuka Ishigami, Misaki Kuno, Ayaka Ohashi — but among them Hidaka is the one with the deepest character-song catalog. Forty-plus tracks across fourteen roles, spanning idol-rock, J-pop, mahō-shōjo, Precure, action-game, action-RPG, rhythm-game, and futurebass registers. When we say “zero solo releases,” the weight of that fact is counter-intuitive: the implied absence is smaller than what is actually there.

The point is to make the character-song catalog legible as a body of work — who she is as a performer, across fourteen different characters, all at once.

The three anchor roles

Three roles carry more recorded weight than the rest of Hidaka’s catalog combined.

Rosia (ロージア) from SHOW BY ROCK!! — lead vocalist of the in-show band Criticrista, alongside Ai Kayano (Tsukino), Hiromi Igarashi (Retoree), and Rie Murakawa (Ichigo). Eight-plus Criticrista tracks on Spotify across 2015 onward. Three of them are in the playlist — at slots 1, 9, and 12. Rosia is Hidaka’s single biggest recorded body of work, larger than any other role, and the Criticrista thread bookends the playlist.

Airi Kashii (香椎愛莉) from RO-KYU-BU! — the number-seven teammate of the basketball team at the center of the 2011–2013 anime. Note: not Tomoka Minato (the team’s lead, voiced by Kana Hanazawa); Hidaka voices Airi. The RO-KYU-BU! 5-VA unit (with Hanazawa, Yui Ogura, Iguchi Yūka, and Hikasa Yōko) released one S1 OP (SHOOT!), one S2 OP (Get goal!), and two albums plus two character-song albums of per-character solo cuts. Three of the unit’s five members are in the Symphogear cast — Iguchi (Maho), Hikasa (Saki), Hidaka (Airi) — and the playlists across the cast pick complementary RO-KYU-BU! material so the unit’s coverage doesn’t collapse to a single track repeated three times. Hidaka’s anchor is Get goal!, the S2 OP.

Criticrista and RO-KYU-BU! cover the named-unit shape of her catalog. The third anchor is the role-range spread — Silica in Sword Art Online (the role anglophone listeners are most likely to recognize), Laura in Tropical-Rouge! Precure (the target- demographic-young-girls Precure register), Hardgore Alice in Magical Girl Raising Project (dark mahō-shōjo), Elenora in Villainess Level 99 (2024, the current-era role), Najimu in 幼女社長R (the Neko Hacker futurebass collab). Each role surfaces a different register. None of them are solo releases; all of them are Hidaka singing something.

The RO-KYU-BU! split

RO-KYU-BU! is a five-VA basketball-anime unit; three of the five are in this cast — Iguchi (Maho), Hikasa (Saki), and Hidaka (Airi). Iguchi’s playlist leads with SHOOT!, the S1 OP and most-recognizable unit track (Oricon #10). Hikasa’s catalog has a different ensemble priority, so her playlist uses K-ON!‘s Don’t say lazy rather than a RO-KYU-BU! track. Hidaka’s takes Get goal!, the S2 OP (Oricon #11) — same unit, two years later, different era within the same five-VA catalog. The unit gets two-of-three coverage across the cast, S1 OP and S2 OP, without overlap.

The twelve tracks, in detail

1. Yes!アイドル宣言 (2015)

A Criticrista insert song from SHOW BY ROCK!!, with Hidaka leading on Rosia’s orange/pink vocal line. Four-voice idol-rock, the band’s declarative statement — the song that introduces Criticrista to the franchise’s audience. Rosia is the band’s vocal lead by design, so this is the track where Hidaka is most forward in the four-voice weave. It opens the playlist because it’s the biggest single anison- discussion footprint she has.

2. ☆Lovely Super Idol☆ (2020)

Silica (綾野珪子 / Keiko Ayano, CV: Hidaka) solo character song from the 2020 Sword Art Online character-song collection. Silica is the dragon-girl teammate from the Aincrad arc — 2012 onward, consistently returning across SAO’s long-running franchise. For an anglophone listener who came to Hidaka through SAO, this is the entry point. Bright J-pop, chirpy vocal, the balancing point between pop-that- works-as-pop and a performance specifically scored for Silica.

3. ほっこり日和 (2013)

Airi Kashii’s solo character song from Ro-Kyu-Bu! Character Songs 05 (2013) — a quiet warm-afternoon-mood ballad. The natural choice for the early-career ballad position was 君は, Hidaka’s 2012 character song as Ririchiyo Shirakiin from Inu×Boku SS (the ED3, a fan-cited early-career ballad high), but 君は isn’t findable on Spotify in any credit form. ほっこり日和 sits in the same register — introspective character-song ballad — within a different character and her actual available catalog. The playlist’s first slowdown: Hidaka as the delicate-ballad performer, distinct from slot 1’s idol-rock and slot 2’s J-pop.

4. Get goal! (2013)

RO-KYU-BU!‘s fourth single, 2013-07-10. The S2 opening theme of the anime. Oricon #11. The named-unit anchor for Hidaka, coordinated against Iguchi’s SHOOT! so the RO-KYU-BU! cluster across the cast gets representation from both S1 and S2. Four slots in, four modes covered: Criticrista ensemble → Silica solo → Airi solo → RO-KYU-BU! unit.

5. ジンジャーYell (2013)

Airi Kashii’s first solo character song, from Ro-Kyu-Bu! SS Character Songs 04 (2013) — an upbeat genki track, the energetic counterpart to slot 3’s quiet ほっこり日和. Flanking the RO-KYU-BU! unit slot with two Airi solo tracks gives the playlist an “Airi triptych” — character-within-the-unit framed by her two solo character songs. Airi across 2011–2013 got more character material than any of Hidaka’s other roles outside Criticrista, so the concentration is honest to the catalog’s shape.

6. 好きがレベチ (Suki ga Rebechi, 2024)

A duet ED from 悪役令嬢レベル99 ～私は裏ボスですが魔王ではありません～ (Villainess Level 99, 2024). Hidaka voices Elenora Hillrose; the duet partner is ファイルーズあい (Fairouz Ai) as Yumiella. 2024 J-pop arrangement, the post-isekai sonic palette of the current anime cycle. The playlist needs a current-era anchor so the catalog doesn’t read as a 2013–2016 retrospective; Elenora is the proof that eighteen years in, her character-song output still lands in the same visibility tier it always did.

7. なかよしのうた (Nakayoshi no Uta, 2021)

Laura (ローラ, CV: Hidaka) from Tropical-Rouge! Precure (2021–22). Precure’s target demographic pushes this into bright-pop-children’s- TV register — further from anison mainstream than most of the playlist, and specifically kodomo-muke in a way the rest isn’t. If the listener has only heard her idol-rock/mahō-shōjo/action-game work so far, this slot proves the same performer works in the opposite register.

8. Forget me Not… (2016)

Hardgore Alice’s character song from Magical Girl Raising Project (2016) — a dark-mahō-shōjo anime, and the character song reflects the tone: minor-key, somber arrangement, emotionally weighted. The direct counter to slot 7’s Precure brightness. Same kind of young-voiced protagonist frame, opposite emotional valence. The tonal-pair structure of slots 7 and 8 is where the playlist’s range becomes most visible — the same vocal performer in two directly opposed character frames.

9. ビビビーチ♥ビビビビーチ! (2015)

The second Criticrista track — from SHOW BY ROCK!!‘s summer-single release. Where Yes!アイドル宣言 was the band’s idol-rock declaration, ビビビーチ is the beach-summer-party mode. Light arrangement, surf-guitar-adjacent guitar work, Rosia one equal vocal among four. A Criticrista track in ensemble register rather than lead-forward register; different side of the same band.

10. オ・ヒ・メ・サ・マ! (2023)

The ED of 幼女社長R (Youjo Shachō R, 2023), credited to 六科なじむ (CV: 日高里菜) × Neko Hacker. Najimu is the child-CEO protagonist; Neko Hacker are Neko Saitō and Cody Kuribayashi, a Japanese electronic-pop production duo known for chiptune-futurebass crossover work. The collab moves Hidaka’s child-voice register into producer-led bubblegum-futurebass territory — a sonic space that doesn’t appear anywhere else in her character-song catalog. Ten slots in, the listener has heard idol-rock, J-pop, two Airi ballad modes, a unit anthem, 2024 duet-pop, Precure children’s, dark mahō-shōjo, and Criticrista summer pop. Najimu × Neko Hacker adds the one palette none of those cover.

11. Inapplicability (2015)

A duet from Aoki Hagane no Arpeggio -Ars Nova- by I-400 (CV: Hidaka) and I-402 (CV: Yamamoto Nozomi). The 2.5D-unit anchor here would ideally have been 恋とキングコング — Marika Yamagata’s character song from the Bemani rhythm-game franchise Hinabita♪, a deep-cut curator’s pick — but that track isn’t on Spotify. Inapplicability takes its place from another obscure corner of her character-song catalog: a submarine-AI-girls anime’s character duet, built specifically for the franchise’s strange tone. The point isn’t chart reach — it’s the demonstration that her character-song work extends into spaces listeners wouldn’t expect.

12. Colorful Snow Drop (2015)

A third Criticrista track, the B-side of the 放て!どどどーん! single. Winter-atmospheric group vocal, quieter than either slot 1 or slot 9’s Criticrista picks. The three Criticrista slots (1, 9, 12) form a ring — Hidaka’s biggest catalog body gets three non- adjacent positions that bracket everything else. A listener finishes the playlist on the same band they entered with, in a third emotional register: idol-rock declaration at slot 1, ensemble summer pop at slot 9, group-vocal warmth at slot 12.

Her Symphogear contribution

Hidaka voices Prelati (プレラーティ) — the youngest and most rambunctious of the three Bavarian Illuminati, with Kotobuki’s Saint-Germain as the trio’s leader and Shōta Aoi’s Cagliostro as its theatrical center. Where Saint-Germain is the manipulator and Cagliostro the refined performer, Prelati carries the trio’s impish, unpredictable energy — the youngest-voiced antagonist of AXZ’s cast.

The in-franchise vocal output is three tracks, all shared with Kotobuki and Aoi. The Bavarian Illuminati exist, in the franchise’s character-song catalog, only as a trio — no member has a solo character song. This is a structural fact about how the villains were written, not a research gap:

• 死灯 -エイヴィヒカイト- (Shitō -Ewigkeit-) — the trio’s AXZ episode-12 sacrifice insert, released on the AXZ Character Song Album. Agematsu Noriyasu composition.
• 永輝 -エィヴィガーブント- (Eiki -Ewiger Bund-) — the XD UNLIMITED-era reunion track, 2019-12-04, the post-TV continuation.
• Ewigkeit (the 50-second OST cut) — the German a cappella villain leitmotif from AXZ episode 1.

Prelati’s voice is one-third of that three-way weave, across both TV canon and the post-canon mobile extension. For Hidaka, whose entire career has been performing as other people, singing as one of three villains who only ever sing as three is a continuation of the pattern — not an exception to it.

What was considered and left out

Symphogear exclusions

• Bavarian Illuminati trio tracks (Shitō, Eiki, and the short Ewigkeit OST cut) — credited to サンジェルマン×カリオストロ×プレラーティ (CV:寿美菜子×蒼井翔太×日高里菜). All three route to the Symphogear-songs sub-playlist and to the villains companion companion. Zero artist-credited Symphogear theme songs exist (there are no artist-credited tracks anywhere in her catalog) — her character-song pool is not thinned by franchise exclusion.

Considered but Spotify-unreachable

• 君は (Ririchiyo Shirakiin, Inu×Boku SS ED3, 2012) — an early-career ballad character song, not currently findable on Spotify under any credit form. ほっこり日和 (slot 3) stands in its place; if 君は returns to streaming, this would be the natural anchor for that position.
• 恋とキングコング (Marika Yamagata, Hinabita♪, 2015) — a Bemani rhythm-game curator’s-pick track, not currently on Spotify. Inapplicability (slot 11) covers the same obscure- catalog territory; Hinabita’s streaming availability is inconsistent and may resurface.

Considered and cut (not franchise-related)

• Rolling! Rolling! (RO-KYU-BU! Dear friends album, 2013 S2 ED) — alternate unit track. Get goal! takes the OP slot instead.
• 放て!どどどーん!, コ・ア・ク・マ♥サマーモード, ラヴスウィートブレーメン — additional Criticrista tracks beyond the three on this playlist. Live on the Character Songs companion.
• アクアプリズム (Laura’s alternate Precure character song) — the backup for slot 7. Lives on the Character Songs companion.
• Additional Airi Kashii solo character songs (1mmちょっとのマインド and others from the Ro-Kyu-Bu! Character Songs series).
• Perfect Parfait Parade (2025) — Criticrista 10-year anniversary track, availability pending.
• Minor roles (Milim Nava, Shield Hero Filo, Toaru Index Last Order, Tensei Slime Milim) — patchy streaming availability; would live on the Character Songs companion if availability improves.

Attribution clarifications

• Einhart Stratos (Magical Girl Lyrical Nanoha Vivid) is not a Hidaka role; the character is voiced by Ai Kayano. (An early draft attributed it to Hidaka; corrected.)
• Tomoka Minato (the RO-KYU-BU! team lead) is Kana Hanazawa, not Hidaka. Hidaka voices Airi Kashii, the number-seven teammate.

Companion playlists

• Rina Hidaka · Character Songs (25–30 tracks estimated) — the deep companion for the catalog beyond the 12 tracks above. Additional Criticrista tracks, alternate RO-KYU-BU! character-song-album cuts, Laura alternates, Elenora alternates, Marika Yamagata Hinabita tracks (if streaming availability improves), long-tail minor roles.
• No solo companion is possible — the catalog is what the playlist above and the Character Songs companion contain.

Cross-cast companions

• villains companion — Shitō + Eiki (Bavarian Illuminati trio, with Kotobuki and Aoi).
• unit era companion — RO-KYU-BU! tracks (with Iguchi and Hikasa).
• shared bands companion — Criticrista tracks (with Kayano). Hidaka and Kayano are both Criticrista members; this overlap is preserved on both their pages.
• StarCrew stablemates companion — Hidaka moved to Nana Mizuki’s StarCrew agency in 2023; a niche cross-cast cluster if a stablemates companion takes shape.

Final listen sequence

 1. Yes!アイドル宣言 (2015) · Criticrista (SB69, Rosia 4-voice)
 2. ☆Lovely Super Idol☆ (2020) · SAO char-song (Silica CV:日高里菜)
 3. ほっこり日和 (2013) · Ro-Kyu-Bu! CS05 (Airi Kashii solo, warm)
 4. Get goal! (2013) · RO-KYU-BU! S2 OP
 5. ジンジャーYell (2013) · Ro-Kyu-Bu! SS CS04 (Airi solo, genki)
 6. 好きがレベチ (2024) · 悪役令嬢レベル99 ED (Elenora × Yumiella)
 7. なかよしのうた (2021) · Tropical-Rouge Precure (Laura)
 8. Forget me Not… (2016) · Mahoiku (Hardgore Alice)
 9. ビビビーチ♥ビビビビーチ! (2015) · Criticrista summer (4-voice ensemble)
10. オ・ヒ・メ・サ・マ! (2023) · 幼女社長R ED (Najimu × Neko Hacker)
11. Inapplicability (2015) · アルペジオ (I-400 × I-402 duet)
12. Colorful Snow Drop (2015) · Criticrista ending (4-voice, quiet close)