1. January 0th (a hope song)
2. January 0th (a hope song) (Inst.)
Billlie digital single album
「'the Billlie's odditorium' the first edition」
2023/11/27 ReleaseOTHERS
1. the soul savior ~ I don’t need a superman
2. the soul savior ~ I don’t need a superman (Inst.)
2. the soul savior ~ I don’t need a superman (Inst.)
「Billlie 'BYOB (bring your own best friend)'」
2023/9/27 ReleaseOTHERS
1. BYOB (bring your own best friend)
2. BYOB (bring your own best friend) (English Ver.)
2. BYOB (bring your own best friend) (English Ver.)
Billlie Original Soundtrack
「the Billage of perception: chapter two Original Soundtrack from “the end of the world and the awakening”」
2022/9/8 ReleaseOTHERS
1. the prologue ~ the Birth of emotion
2. back to the world (the $UN palace)
3. RING ma Bell ~ the howling memories
4. the anonymous hide and seek
5. B@ck 2 where we Belong
6. who's the Joker ~ overture to Billlie
7. snowy night before the end of the world
8. B-B'rave
9. RING ma Bell ~ retrogression of time
10. the Birth of emotion and the end of the world
11. epilogue ~ reprise of the $UN palace
2. back to the world (the $UN palace)
3. RING ma Bell ~ the howling memories
4. the anonymous hide and seek
5. B@ck 2 where we Belong
6. who's the Joker ~ overture to Billlie
7. snowy night before the end of the world
8. B-B'rave
9. RING ma Bell ~ retrogression of time
10. the Birth of emotion and the end of the world
11. epilogue ~ reprise of the $UN palace
Billlie Original Soundtrack
「the collective soul and unconscious: chapter one Original Soundtrack from "what is your B?"」
2022/3/1 ReleaseOTHERS
1. prologue ~ 1/1
2. the rumor ~ whatchamacallit
3. flipp!ng a coin (instrumental version)
4. a sign ~ overture to Billlie
5. everybody's got a $ECRET (instrumental version)
6. moon palace ~ the invitation
7. welcome to the strange world ~ GGMGY
8. M◐◑N in the fog
9. epilogue ~ reprise
10. a sign ~ overture to Billlie reprise
2. the rumor ~ whatchamacallit
3. flipp!ng a coin (instrumental version)
4. a sign ~ overture to Billlie
5. everybody's got a $ECRET (instrumental version)
6. moon palace ~ the invitation
7. welcome to the strange world ~ GGMGY
8. M◐◑N in the fog
9. epilogue ~ reprise
10. a sign ~ overture to Billlie reprise