"I love you, too", he replied quietly, desperately wishing to have found the right translation for those words.

Then Ryuutaro just went on to pet Hayato's head and listened to the sound of his breath as it calmed down.
He wasn't feeling tired and even if he had been, he wouldn't have bee able to sleep anyway.
It was good to see Hayato rest like this though... Watching people sleep was considered sleepy, wasn't it? But then again, Hayato'd done the same, so this was just some kind of sweet revenge.