Jack
ジャック
| Jackジャック | |
| Hair | Blond, Long, Ponytail, Straight |
| Eyes | Violet |
| Body | Androgynous, Pale, Slim, Teen |
| Clothes | Fingerless Gloves, Headband, Ninja Suit, Ribbon Hair Tie, Scarf |
| Items | Diary, Kunai, Ninjato |
| Personality | De gozaru, Food Lover, Funny, Honorable, Ignorant, Outgoing, Sessha, Strange, Whimsical |
| Role | American, Bodyguard, Ninja, Poor, Roommate, Superhuman |
| Engages in | Fighting, Not Sexually Involved |
| Visual novels | Side character - Dengeki Stryker |
| Voiced by | Momoi Homi |
DescriptionAdmiring the ninja of Japan with the stated goal of becoming a full-fledged ninja in their homeland, flew out from Texas. Jack's various ninjas techniques are a result of Jack's own effort. Uses an alias because according to a ninja book Jack read long ago, ninjas never reveal their true names. | |