Don't let yourself be motivated by personal grudges. We heroes don't have the authority to make arrests or dole out punishment. It's only because of advances in Quirk regulation that we can use our Quirks at all. But vigilantism is strictly against the rules. And if you're caught going off on your own, that's considered a major crime.Masaki to Tenya Ida in "Kill Em' Dead"
Masaki is a man with messy brown hair and black eyes. His hero costume consists of a blue and white, skin-tight, long-sleeved shirt that tucks into his orange gloves. He wears dark pants, white boots, and sports a signature helmet that features a fish-like fin and blue visor.
Manual has a very kind, attentive and ordinary personality. He has an inspiring attitude, as he wants to become a role model for all modern heroes and can complete any tasks simply. In the extras, it is revealed that Manual chose Tenya Ida because he feels similar to Tenya. He also has a very keen mind and could figure out the reason that Tenya chose his office was to find Hero Killer: Stain.
Unnamed Water Quirk: Masaki's Quirk allows him to control water. He appears to need an outside source of water and is unable to produce it himself.
Battles & Events
|Battles & Events|
|Battles & Events|
- He likes balance and houseplants.
- Horikoshi states that he likes drawing Manual despite him being a side character.
- Manual's Pro Hero name is not belittling according to Horikoshi.
- His surname, Mizushima, is comprised of the kanji for “water” (水 mizu?) and “island” (島 shima?). His first name, Masaki, means “correct/justice” (正 masa?) and “standard/measure” (規 ki?), which can also be collectively read as the term for “normal/regular” (正規 seiki?).
- Masaki's Japanese voice actor, Kenta Ôkuma, also voices Cementoss.
|Heroes||Air Jet • All Might • Backdraft • Best Jeanist • Cementoss • Centipeder • Crimson Riot • Crust • Death Arms • Ectoplasm • Edgeshot • Endeavor • Eraser Head • Fat Gum • Fourth Kind • Gang Orca • Gran Torino • Gunhead • Hawks • Hound Dog • Ingenium • Kamui Woods • Kesagiri Man • Lariat • Lunch Rush • Majestic • Manual • Midnight • Mirko • Mr. Brave • Mr. Principal • Ms. Joke • Mt. Lady • Nana Shimura • Native • Power Loader • Present Mic • Recovery Girl • Rock Lock • Ryukyu • Shishido • Sir Nighteye • Slidin' Go • Slugger • Snatch • Snipe • Takeshita • The Fly • Thirteen • Uwabami • Vlad King • Wash • Wild, Wild Pussycats (Mandalay • Pixie-Bob • Ragdoll • Tiger) • X-Less • Yoroi Musha|
|Vigilantes Original Heroes||Captain Celebrity • Compass Kid • His Purple Highness • Mister Blaster • O'Clock • O'Clock II|
|Movie and Anime Original Heroes||Amplifier • Cow Lady • Electoplant • Godzillo • Mr. Plastic • Nyikang • Pankration • Selkie • Takahiro • X|
|Sidekicks||Bigshot • Bubble Girl • Burnin • Enigma • Flaming Sidekickers • Gang Orca's Sidekicks • Kido • Mick • Midnight Boys • Onemu Shinya • Onima • Sirius|
|Hero Teams||Buster Union • Oki Mariner Crew • Team Idaten • Team Purple Revolution • The Lurkers • Water Hose • Wild, Wild Pussycats|
|Unofficial Hero Teams||Hideout Raid Team|
|Related Articles||Costume • Hero Name • Hero Office • Quirk • Sidekicks • U.A. High School|