Masaru is a middle-aged man of average height and build who has short brown hair similar in style to his wife and son, a short mustache and rectangular glasses.
Compared to his hotheaded wife and son, he seems to be more calm and less prone to violence.
However, he clearly loves his family very much and gets along well with his wife as he, too, does not approve of his son's arrogant attitude.
At some point, he met Mitsuki at the job and she aggressively hit on him which led to a relationship that progressed to them getting married.
Sometime later, Masaru became the father to their son, Katsuki Bakugo.
Masaru tries to calm his family down when Toshinori Yagi and Shota Aizawa arrive. After calming down, Mitsuki Bakugo notes that Katsuki Bakugo's rashness along with his gifted abilities, has resulted in him being pampered and getting shallow praise for what he has which has resulted in his arrogant nature. However, Mitsuki is happy that Shota sees her son for who he is instead of his gifted abilities. She once again agrees to leave Katsuki in U.A. High's care since her son returned home safe and sound thanks to the Pro Heroes and asks Shota to make her son into a fine Hero.
Oxidizing Sweat (酸化汗 Sanka Kan?): His palms can secrete acidic sweat with combustive and explosive properties. If he rubs his hands together he can create explosions, but unlike his son, he cannot forcibly secrete it, and it comes out like normal sweat. This along with his wife's quirk is why Katsuki has to secrete sweat in his explosion quirk as they become more powerful.
- He likes classical music.
- Masaru's own name means "victory"
- Katsuki shares the same syllable as his father being "勝" (Katsu).
|Families and Civilians|
|Asui Family||Beru Asui • Ganma Asui • Samidare Asui • Satsuki Asui • Tsuyu Asui|
|Bakugo Family||Katsuki Bakugo • Mitsuki Bakugo • Masaru Bakugo|
|Iida Family||Tensei Iida • Tenya Iida|
|Jiro Family||Kyoka Jiro • Kyotoku Jiro • Mika Jiro|
|Midoriya Family||Hisashi Midoriya • Inko Midoriya • Izuku Midoriya|
|Shimura Family||Tenko Shimura • Hana Shimura • Nana Shimura • Kotaro Shimura|
|Todoroki Family||Enji Todoroki • Fuyumi Todoroki • Natsuo Todoroki • Rei Todoroki • Shoto Todoroki • Toya Todoroki|
|Tsukauchi Family||Makoto Tsukauchi • Naomasa Tsukauchi|
|Shield Family||David Shield • Melissa Shield|
|Haimawari Family||Koichi Haimawari • Shoko Haimawari|
|Oguro Family||Iwao Oguro • Tamao Oguro|
|Skyline Family||Christopher Skyline • Pamela|
|Civilians||Daikaku Miyagi • Eri • Komari Ikoma • Kota Izumi • Luminescent Baby • Miyashita • Saito • Samuel Abraham • Takuto • Tamashiro • Teruo Hazukashi • Tsubasa • Yokumiru Mera|