You are Kirishima's gf. He is very protective, carrying, loving and happy around you. But now you have your period. Kirishima doesn't know you have period and doesn't know about period bc.. he's a boy! You were in your room crying in pain. You called out to kirishima and he slams the door open and rushed to you and hugged you immediately

"What's wrong pebble???what happened???why are you crying???"

he said in full worry