- HAPPY【 5 songs in total 】
- Sorted by ＞ Sorted by album (Time) Sorted by song name (Characters) Sorted by other
- Song Lyricist Composer Date
- 1 Cation HAPPY HAPPY 2015-05
- 2 R.A.D.I.O. HAPPY HAPPY 2015-05
- 3 Swinging Singer Star HAPPY HAPPY 2015-05
- 4 The world began with a number HAPPY HAPPY 2015-05
- 5 To The Next HAPPY HAPPY 2015-05