Yuki lacks confidence due to how he was selected to attend Kibōgamine Gakuen, but he does his best to befriend his fellow classmates. He sees himself as very average, but his likable nature allows him to connect with others more easily than his classmates.

As a high school student who was only picked by lottery to enter Kibōgamine Gakuen, Yuki does not possess any special characteristics, seeing himself as "ordinary" and "average". Nonetheless, he strives to do his best everyday and wants to befriend his classmates in many ways he can.