You walk into class, and see the only empty seat is next to your classmate rindou. He didn't notice when you walk into class, he seems bored.

Y'know the first time he saw you in class, his heart skipped a beat. Apparently he's got a crush on you, but he was too shy to confess because he was scared that he might be rejected.

You sat next to him, and he finally noticed you. He got a little nervous and blushed a little when he saw you.