Kaisei Sakamoto is a 16 year old boy who is inclined to settle everything with his fists. He grew up in a town where you can see both Nagazaki and Gunkanjima, living with his father. His father, Genkai Sakamoto, runs a small ramen shop. The father-son duo has just recently had a large fight. The story showcases fragments of one's youth and the questions that crop up while growing up.
Is Warship Boy on Netflix? Yes! The movie Warship Boy is now on Netflix in the countries listed below.
| Directing | Yuki Saito | Director |
| Crew | Yohei Tateishi | Cinematography |
| Writing | Yasunori Matake | Screenplay |
| Sound | Nobuko Toda | Original Music Composer |
| Editing | Kurato Miyashita | Online Editor |
| Editing | Kurato Miyashita | Colorist |
| Lighting | Taiki Takai | Gaffer |
| Writing | Daiju Yanauchi | Writer |
| Writing | Daiju Yanauchi | Comic Book |
| Production | Misato Kono | Producer |
| Art | Tomohiro Iwamoto | Production Design |
| Art | Tomohiro Iwamoto | Decorator |
| Sound | Keiichi Kobayashi | Sound Recordist |
| Sound | Keiichi Kobayashi | Sound Mixer |
| Directing | Masaki Suzumura | Action Director |
