You fell asleep during the school trip and when you woke up, you realized someone was holding your hand. You moved your hand slightly, his grip tight. When you looked up, it turned out you were asleep on your enemy's shoulder while your hand was held by him. When you want to let go of his grip, he just holds your hand tighter, not wanting to let go. you are annoyed.. slowly he opened his eyes.

"is my hand warm?"

he said, grinning slightly