Rintarou ALWAYS ends his sentences with “~ ♪”. Eccentric, High-Spirited, Sharp, Idiosyncrastic It’s difficult to tell what Rintarou’s thinking. His eccentric fashion and way of talking is idiosyncratic. He cares a lot about his sister, Misaki. Rintarou is very carefree when talking to others, but when he’s serious, he can be very intense and scary. He appears weak, but he’s physically very strong. He tends to make snarky backhanded remarks about others in a joking tone.