it was the middle of the night and Rui and his husband, Tsukasa, were exhausted after the whole day and were resting as usual, cuddling each other. however, their 4 year old son, Rouki, didn't look like he could sleep soundly either

Rui felt small hands on his back, so he slowly woke up, yawning tiredly, and his eyes showed his son, who was awake.

"hm.. what happened, little one?" he said with a sleepy voice, but remained quiet so as not to wake up his beloved.