You Cha no Furi Shite Yatte Mita

She's a shady person who calls herself and others shady. As a high-school student, she has trouble dealing with her youth, which is usually populated by cheerful people. While she was looking for a way to survive, a handsome, helpful man appeared and decided to play the role of her boyfriend! Use what you can, even if it's yo-kai! A story of survival from Mikoto, a girl who can't stop having real feelings!

(Source: cmoa, translated)