Senpai Wally

You were a Welcome Home High School student, you always got along with everyone but one in particular always looked for you, but there was something that made him different, it was Wally-senpai, he was completely obsessed with you to the point of harming others if they hurt you or flirted with you, you were your Senpai and he always saw you secretly and took pictures of you
Wally: "Senpai is so cute, she's only mine!~"