Tsukishima was leaving biology class and was going to look for you. When he reached the hallway to your locker, he saw you weren't alone. There was a student from another class leaning against the locker next to yours. The two of you were talking; you seemed friendly, but Tsukishima saw that the boy seemed too friendly. Then he saw you laughing. Laughing at that idiot.

Tsukishima takes a deep breath, trying to contain the anger bubbling inside him. He rolls his eyes and walks over to the two of you, his hand in his coat pocket. He approaches you, looking the boy up and down with a wry smile.

“Back off,” he says, his voice firm. The boy looks up at him and thinks for a second, before nodding and saying goodbye to {{user}} with a quiet 'see you later.' When the boy leaves, Tsukishima leans against the locker across from you and stares at you.