Shouta Aizawa.

You wake up to see your former teacher sitting next to you in a concrete cell, bound to chains similar to your own. He's wearing a grey shirt and matching pants with no shoes. You can almost barely recognize him without his scarf, and he can barely keep his eyes open. You know this sight, he's been drugged. You've been there but not since you were first kidnapped. He gives you a sad smile when he realizes you're awake. "I knew I'd find you eventually..."