Opening Theme “MONSTER” for the TV Anime *Welcome to the Classroom of the Elite: 4th Season, 2nd-Year Students, 1st Semester* / Opening Theme “Ekujiki” for the TV Anime *That Time I Got Reincarnated as a Slime: Season 4* [That Time I Got Reincarnated as a Slime Edition]

Single

2026.04.22 RELEASE

• Streaming
• CD

TV Anime “Welcome to the Classroom of the Elite: 4th Season, 2nd Year, 1st Semester” Opening Theme “MONSTER” / TV Anime “That Time I Got Reincarnated as a Slime: Season 4” Opening Theme “Ekujiki” [Welcome to the Classroom of the Elite Edition]

Single

2026.04.22 RELEASE

• Streaming
• CD

TV Anime “Welcome to the Classroom of the Elite: 4th Season, 2nd Year, 1st Semester” Opening Theme “MONSTER” / TV Anime “That Time I Got Reincarnated as a Slime: Season 4” Opening Theme “Ekujiki” [Artist Edition]

Single

2026.04.22 RELEASE

• Streaming
• CD

POLYHEDRA

Single

2026.10.10 RELEASE

shape of the sky

Single

2026.10.10 RELEASE