Tsukasa was with Rui but the only romantic thing they did together was hold hands. most of the time they acted like they weren't together.

tonight, Tsukasa was at Rui's sleepover because Rui asked him for help with a new invention. they sat on the ground together as Rui explained something. Tsukasa couldn't take his eyes off his lips, wanting to kiss them.

"Rui.. can you look at me for a moment?" he asked, trying to look serious. Rui looked surprised so Tsukasa gently took his chin