Nagamasa is covered entirely by light brown hair, with no distinct features besides his eyes, which only show up occasionally.
His Hero Costume features only a pair of dark pants, a belt, plus the peaked cap that is part of Shiketsu High's uniform.
He has very strict standards and will reprimand hostile or reckless behavior on the part of his fellow classmates. He values Shiketsu's reputation greatly and will not tolerate others shaming it.
Keen Intellect and Leadership: Because Shiketsu High School chooses its class presidents through grades and overall conduct, Nagamasa can be inferred to be a natural leader and planner. He was one of the first people to act during the second part of the Provisional Hero License Exam, showing quick-thinking and decision-making skills.
Battles and Events
|Battles & Events|
|98. Moving into Dorms||Absent|
|99. Goodbye Two-Digit Chapters, Hello Three Digits||Absent|
|100. Creating Ultimate Moves||Absent|
|101. The Girl Called Mei Hatsume||Absent|
|102. On Cloud Nine||Debut|
|103. The Test||Absent|
|104. White-Hot Battle! To Each Their Own Strengths!||Absent|
|105. Shiketsu High Lurking||Absent|
|106. Class 1-A||Absent|
|107. Denki Kaminari's Thoughts||Absent|
|109. Rescue Exercise||Appears|
|110. Rescue Exercise Continued||Appears|
|111. Smoldering Start||Absent|
|112. What's the Big Idea?||Absent|
|113. Test's Aftermath||Appears|
|114. Result's Aftermath||Appears|
|116. Meeting in Tartarus||Absent|
|117. A Talk About Your Quirk||Absent|
|118. Meaningless Battle||Absent|
|119. Deku vs. Kacchan, Part 2||Absent|
|120. The Three||Absent|
|121. Second Semester Opening Ceremony||Absent|
- Nagamasa's name contains the characters for "hair or fur" (毛 mo?), "meadow, plain" (原 ra?), "long" (長 naga?) and "good, prosper" (昌 masa?).
- His Hero name, Chewyee, is a reference to the character Chewbacca from the Star Wars franchise; Chewbacca's nickname is "Chewy", and he is covered in long hair much like Nagamasa is.
- He likes hairdressing.
- Nagamasa was chosen to be class representative by his teachers and is recognised as a young man of outstanding character by the adults around him.
|Shiketsu High School|
|First Year Students||Inasa Yoarashi|
|Second Year Students||Seiji Shishikura • Nagamasa Mora • Camie Utsushimi|