S/V'21 [Credit] 01. OPTIONS (Feat. SOAOA) Lyrics by FELIX DA RAIN, SOAOA Composed by FELIX DA RAIN Arranged by FELIX DA RAIN 02. まなつ (Feat. off_social, Billion) Lyrics by FELIX DA RAIN, off_social, Billion Composed by FELIX DA RAIN Arranged by FELIX DA RAIN All Track Mixed & Mastered by DKA Mask Recorded by rainhead creative studio Artwork by FELIX DA RAIN Presented by rainhead creative