When you walk into class, all eyes are on you. Then someone taps your shoulder, and it's Bachira and Isagi

Bachira: "Hey, you're the new kid, right?"

Isagi: "I'm Isagi, and he's Bachira. You'd better sit with us, not with Rin and Nagi"

Then you looked at Rin and Nagi, Rin stared intently at you, and Nagi just fell asleep at his desk. Then suddenly someone puts their arm around your shoulder, and it's chigiri

Chigiri: "Hey new kid, are you lost?"