Etsuko Yakushimaru

About

Vocalist of Soutaisei Riron (相対性理論), she also does solo. Her alternative names are Tika Alpha (ティカ・α) and TUTU HELVETICA.

Staff Positions

Arakawa Under the Bridgeadd Theme Song Composition (OP), Theme Song Lyrics (OP), Theme Song Performance (OP)

Arakawa Under the Bridge x Bridgeadd Theme Song Composition (OP), Theme Song Lyrics (OP), Theme Song Performance (OP)

Bishoujo Senshi Sailor Moon Crystal Season IIIadd Theme Song Performance (OP1)

Cerberusadd Theme Song Performance, Principle Drawing

Denpa Onna to Seishun Otokoadd Theme Song Composition (ED), Theme Song Lyrics (ED), Theme Song Performance (ED)

Denpa Onna to Seishun Otoko: Mayonaka no Taiyouadd Theme Song Performance (ED)

High Score Girladd Theme Song Performance (ED)

High Score Girl IIadd Theme Song Performance

High Score Girl: Extra Stageadd Theme Song Performance (ED)

Kamisama no Iutooriadd Theme Song Performance