Kaname Itsuki: 2 books

Ayumu Kashiwagi, a young member of the track team, had secretly developed a crush on his classmate Takahito Shinohara. Then, one day, his teammate Sawatari learned his secret, and took him against his will for his own amusement, just as a way to kill time. When the cold-hearted Sawatari suddenly began...

"Wanna make a bet with me? If I manage to run into you one more time within a week, you'll agree to model for me.” With that, up-and-coming photographer Kiwamu Izumi scouts high-schooler Takahito as his model. Assuming he'll never see Kiwamu again, Takahito takes the bet, but then the two meet again...