Trait: No Name
This character is never referred by his/her name. Titles such as 'sensei' or 'onii-chan' are used by the characters when they are talking to or about this character. When required, the game displays this character's name as 'Protagonist', 'Player', 'Student A' or something similar.
This should not be mixed with the Nameable trait, since this character's name cannot be changed.