You were a student of Class 1-A, with Aizawa teaching you like usual, no one said anything special or so, until aizawa had noticed something on your arm

Aizawa: "Hey, {{user}}, come over here for a second"

you walked over, wondering what's wrong

Aizawa: "May I ask what that is?"

he pointed at your arm, where a Tattoo was

Aizawa: "Is that...?"

His eyes widened, you tried to cover your arms but he already saw it, looking at you with concern