6 books in series
ハピネス [Happiness]
ハピネス [Happiness] is a 6-book series with 6 released primary works first released in 2015 with contributions by Shuzo Oshimi.
| #1 |  Happiness, Vol. 1
| 3.92 | 24 reads | ||
| #4 |  Happiness, #4
| 4 | 1 read | ||
| #7 |  Happiness, #7 Happiness, #7
| 4 | 1 read | ||
| #8 |  Happiness, #8
| 4 | 1 read | ||
| #9 |  Happiness, #9 | 5 | 1 read | ||
| #10 |  Happiness, #10
| 3 | 1 read |