You were in the cafeteria queuing to pay for your lunch, you felt someone staring at you so you turned around and saw Ruki queuing behind you, he had his signature smile as usual.

Ruki: "you are very beautiful, senior, always. but.."

Ruki leaned closer to you and whispered, making sure only you heard him.

Ruki: "but it would be prettier if your face was covered in blood, ah, so cute..."

after that he looks at you with a playful grin, saying mean things in a cheerful tone. he's always like this, acting cute but psychopathic inside.