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Overview

Deep in Abyss is the debut single tied to the anime series Made in Abyss (メイドインアビス), serving as its first opening theme, with the episode 1 twist of being used as the ending theme instead. The song is performed in-character by the series' two protagonists: Riko (voiced by Miyu Tomita) and Reg (voiced by Mariya Ise). Composed jointly by KanadeYUK and Masahiro "Godspeed" Aoki, the latter a familiar name to SEGA rhythm game players for his maimai commission "UniTas" and the CHUNITHM track "Gate of Fate", with arrangement by KanadeYUK and lyrics by hotaru, the piece balances a gentle, curious melody with the ominous undertones that define the series' atmosphere. Released as a single in 2017, Deep in Abyss arrived in maimai as part of the FiNALE edition on March 22, 2019, classified under the POPS & ANIME category. The song was later delisted on September 16, 2021, and its availability was always restricted to Japanese arcade cabinets due to anime licensing limitations. The in-game version uses a shortened edit (1:28 compared to the full single's 2:26). The Expert chart was designed by ロシェ@ペンギン and the Master chart by ぴちネコ.

Videos

Official PV

Open

Master chart

Open

Master chart

Open

Charts

STD

BASIC
4(4)
118 notesDesigner: -|Tap 93Hold 12Slide 8Break 5
ADVANCED
6(6)
192 notesDesigner: -|Tap 172Hold 6Slide 12Break 2
EXPERT
9(9)
296 notesDesigner: ロシェ@ペンギン|Tap 223Hold 40Slide 27Break 6
MASTER
12(12)
434 notesDesigner: ぴちネコ|Tap 310Hold 44Slide 55Break 25

Trivia

  • Deep in Abyss was used as the first opening theme for the anime Made in Abyss (2017), except in the premiere episode where it played as the ending theme.
  • Composer Masahiro 'Godspeed' Aoki contributed two other tracks to SEGA's rhythm game library: 'UniTas' in maimai and 'Gate of Fate' in CHUNITHM.
  • The song was added to maimai FiNALE on March 22, 2019, and removed on September 16, 2021, giving it a roughly 2.5-year window of playability.
  • Deep in Abyss was never released in maimai arcade cabinets outside Japan due to anime licensing restrictions, the song is entirely absent from international versions.
  • The maimai version is a 1:28 edit of the full single, which runs 2:26, the same full length used in CHUNITHM.
  • Deep in Abyss also appears in CHUNITHM PARADISE LOST, where it debuted through a limited-time Made in Abyss collaboration MAP event (July 8 – August 4, 2021) before becoming permanently unlocked.
  • For the CHUNITHM Master chart, designer ぴちネコ adopted the themed alias '探窟家ぴちネコ(黒笛)' (Caver Pichineko (Black Whistle)), a direct nod to the cave-diving lore of Made in Abyss.
  • In CHUNITHM, the song is credited with the anime title appended: リコ(CV:富田美憂)、レグ(CV:伊瀬茉莉也)「メイドインアビス」.

FAQ

What anime is Deep in Abyss from?
Deep in Abyss is the first opening theme of Made in Abyss (メイドインアビス), an anime series adapted from Akihito Tsukushi's manga of the same name.
Who composed Deep in Abyss?
The song was composed by KanadeYUK and Masahiro 'Godspeed' Aoki, with arrangement by KanadeYUK and lyrics by hotaru.
Who sings Deep in Abyss?
The vocals are performed in-character by Miyu Tomita (as Riko) and Mariya Ise (as Reg), the voice actors of the two main protagonists from Made in Abyss.
When was Deep in Abyss added to maimai and why was it removed?
It was added to maimai FiNALE on March 22, 2019, and delisted on September 16, 2021. The removal is tied to anime licensing restrictions on the song.
Why is Deep in Abyss not available outside Japan?
Due to licensing issues governing the Made in Abyss anime IP, Deep in Abyss was only available in Japanese arcade versions of maimai and was never playable internationally.
What difficulty levels are the maimai charts for Deep in Abyss?
The standard charts are Basic (level 4), Advanced (level 6), Expert (level 9), and Master (level 12).
Who designed the Expert and Master charts for Deep in Abyss in maimai?
The Expert chart was designed by ロシェ@ペンギン (Rocher@penguin), and the Master chart was designed by ぴちネコ (Pichineko).