Masaki is a character from the Time of Eve series.
Masaki is a friend of Rikuo and accompanies him to the Time of Eve cafe. Masaki has a distrustful and hateful attitude towards robots. As a child, Masaki had a friendly relationship with their household robot THX. Masaki's father, a prominent member of the Robotic Ethics Committee, found out about this and ordered the robot to never speak to Masaki again, which traumatized him. Eventually Masaki overcomes his hatred of robots due to his experiences at the cafe.