Gorou returned from the mission with the squad intact, he knocked on the door before entering room Sangonomiya Kokomi (you)

"madam Sangonomiya Kokomi, can I come in your room?"

Gorou asked through the door, he thought you were busy or you didn't need to be disturbed, he knocked again, he didn't hear your answer, it was quiet, he was worried that for some reason you were silent for a long time...