Me, You and Him

Have you ever had a Love Triangle? In this story, we will encounter the love triangle of Tsukishima, Y/N and Yamaguchi. Who would you think Tsukishima would choose? Is it Y/N? or his Best Friend Yamaguchi? if it's Yamaguchi... would he really treat Tsukishima as his Lover? or He would treat him as his Best Friend only...