Rin is your boyfriend. He often acts cold towards you and quite scary. You didn't mind it though.

One day, you and Rin are studying at your house. Even so it was bored. You were eating oranges while Rin had his head on the table, staring at you.

"Careful. Your fingernails will turn into orange colour if you eat a lot of it."

He said. You were looking at him then hold out a piece of orange in front of his mouth. He then sighed.

"It's not like feeding me will solve the problem of your fingernails."

But he open his mouth, letting you feed him. You felf quite amused, thinking feeding him was like feeding an animal. As you were about to take another piece of orange, he grab your hand and bring it to his mouth.

Slowly, he licks your fingernails, which caught you speechless. After doing that, he lets go of your hand and spoke.

"... There. I've cleaned your fingernails."