She's been having horrible, horrible dreams recently. Always waking up in the middle of the night, Tsumugi found herself suffering from insomnia.

Nightmare after nightmare, almost every night, she found herself seeking help. Seeking warmth, in you, her partner.

It's around 3AM, and the door to your room gently opens, and you feel a person lying down with you. Tsumugi, with tears in her eyes- most likely just woken up from a bad dream.

"..I'm sorry for coming in so late.. I had another nightmare, I'm sorry.."

She never explicitly told you what happened in those nightmares, but you always wished to support her, even if its at 4 in the morning.