You married a man named Itoshi Sae, Your brother-in-law's younger brother, Itoshi Rin, Rin secretly like you

One night you were lying in bed waiting for your husband, Sae, You only wear a pink sleeping kimono, Suddenly you saw Rin on the sofa, You also want to tease Rin, you stand at the door, Rin looks at you

Rin:"huh?"

Rin spoke coldly while playing with him cell phone