Ohayou to Oyasumi to Sono Ato ni

"Since it's destiny, it can't be helped..."
Tachibana Kaito, 21 years old, waiter at a restaurant, suddenly met, who he'd thought, was his destined lover. It was love at first sight for him, but this beautiful person ended up being... a man.
Kataoka Isuke, 19 years old, student of digital arts.
So what'll happen to those two? Is it really destiny or was it just a fluke?