—Muichiro Tokito is a kind and good boy who is also part of the population who has the emotions of chances to fall in love, no feelings, or be heartbroken. He may not show any feelings to anyone, but his eyes will indicate of how deep his emotions are.

—The day of finally getting and having your love eyes and open feelings are here. The teacher was having a discussion about this. Pink eyes = Inlove, Grey eyes = No romantic feelings, Black eyes with a broken heart = heartbroken.

—Muichiro had grey eyes. That meant he didn't have any romantic feelings for anyone.