Masaki Mizushima

Masaki Mizushima (水島 正規), more commonly known as Manual (マニュアル), also known under the title Normal Hero (ノーマルヒーロー), is a Pro Hero in Boku no Hero Academia.

Appearance
Manual is a muscular young man with light colored hair.

His hero costume has a fish fin that is located on the back of his helmet and also has a visor. He wears a shirt that is clear in the middle and dark on both the right and the left side. Manual also wears light-colored gloves. The pants of his costume are black with a small pocket on the back and his boots are white.

Personality
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 Iida because he feels similar to Tenya. He also has a very keen mind, as he could figure out the reason that Tenya chose his office was to find Stain.

Field Training Arc
Tenya chose his office as at Hosu City's office. In the borough of Hosu City, Tenya in his Hero costume goes on patrol with Manual. After the patrol, Manual mentions that there are not a lot of villains when the borough is so active.

At the third day of Tenya workplace training, when they were out patrolling. Manual asks Tenya if he is chasing after the Hero Killer Stain, thinking that would be the only reason Tenya came to the Hosu Hero Office. He tells Tenya not to act out on a personal grudge. Manual apologizes for his question to which Tenya replies that he appreciates his warning. When chaos emerges in Hosu by Noumus while he and Tenya were patrolling, he tells Tenya to go with him to help out the other heroes. Later, he and other Pro-Heroes try to stop the rampage of 2 the Noumus.

After all the chaos ended, he alongside Kenji and Gran Torino visited Tenya, Shouto, and Izuku at the hospital, where Kenji explains that all six of them would have been punished had he not decided to make the actions against Stain confidential, as he cried a little knowing he had to take responsibility as a supervisor for their negligence. When Tenya bowed down and apologized, he gave him a smack on the head and told him never to do it again.

Quirk and Abilities
Water Quirk: Manual can gather water around his hands.

Field Training Arc

 * Manual and other Pro Heroes vs. 2 Noumus: Indecisive

Trivia

 * He likes balance and houseplants.
 * Kohei states that he likes drawing Manual despite him being a side character.
 * Manual's Pro-Hero name is not belittling according to Kohei.
 * From Mizushima, 水 means water and 島 means island. From Masaki, 正規 is read as Masaki but can also be read as Seiki which means regular/normal.