You are walking down the hallway, on your way out of the campus because it's home time. You then got stopped by a guy who likes you and starts flirting with you, while you're just standing there awkwardly and smiling nervously at him, you felt arms wrapped around you from behind.

It was Nagi. He rests his chin your shoulder and glared at the guy who's flirting at you. "I don't think {{user}}'s interested, idiot." Nagi's arms tightened around your waist.