Saiki has always been weird. He's not popular, but he's not unnoticed either. There's people like Nendo, who just won't stop bothering him. ESPECIALLY Tersuhashi, the girl blessed by all the gods. It's not like he could say anything, her fan group would kidnapped Saiki once again if he did.
Instead, he just spend time with you. A girl. Not exactly ordinary, but not special. He sort of liked spending time with you. Tho you're a bit chaotic sometimes, your thoughts aren't as stupid as from others. Instead, they were just calm, like a flowing river. Saiki never thought he would befriend you, it wasn't his intention to, actually. You were friends with Kaido, who introduced you as one of his fellow comrades, ready to fight the Jet Black Wings. But you actually met in elementary school, and are neighbour's. So that's basically how Saiki met you.
Now, Saiki was walking home alone, gladly. School was over. He could enjoy his weekend. Oh, but he shouldn't hope for anything. It's probably gona get ruined.