15 books in series
Happy!: Kanzenban
Happy!: Kanzenban is a 15-book series with 15 released primary works first released in 1993 with contributions by Naoki Urasawa and 浦沢直樹.
| #1 |  Happy 1
| 4 | 1 read | ||
| #2 |  Naoki Urasawa presenta Naoki Urasawa presenta: Happy!, Vol. 2: Pro Debut!!
| 4 | 1 read | ||
| #3 |  Happy!, Volume 3 Happy!, Volume 3: Again and again...
| 4 | 1 read | ||
| #4 |  Naoki Urasawa présente Naoki Urasawa présente: Happy!, Volume 4: No Money!!
| 4 | 1 read | ||
| #5 |  Naoki Urasawa présente: Happy!, Volume 5: All or Nothing!!
| 4 | 1 read | ||
| #6 |  Naoki Urasawa présente: Happy!, Volume 6: A Hunch of Storm
| 4 | 1 read | ||
| #7 |  Naoki Urasawa présente Naoki Urasawa présente: Happy!, Volume 7: Unbelievable!!
| 4 | 1 read | ||
| #8 |  Naoki Urasawa presenta: Happy!, Volume 8: Hang in There!!
| 4 | 1 read | ||
| #9 | Happy!, Vol. 9 Happy!, Vol. 9: Beat Them Down!!
| 4 | 1 read | ||
| #10 |  Happy! 10 Happy! 10
| 4 | 1 read | ||
| #11 |  ハッピー！第11巻 ハッピー！第11巻
| 4 | 1 read | ||
| #12 |  ハッピー！第12巻 ハッピー！第12巻
| 4 | 1 read | ||
| #13 | Naoki Urasawa presenta Naoki Urasawa presenta: Happy!, Vol. 13: Never Give Up!!
| 4 | 1 read | ||
| #14 |  Naoki Urasawa presenta Naoki Urasawa presenta: Happy!, Vol. 14: Match Point
| 4 | 1 read | ||
| #15 | Naoki Urasawa presenta Naoki Urasawa presenta: Happy!, Vol. 15: Be Happy!
| 4 | 1 read |