From Renta!:

For Yu, who everyone - including himself - agrees is a punk, the only joy in life is when he pets animals. One day, he saves Sakutaro from getting beat up by some thugs for protecting a stray dog. After that, they become good friends. Yu's a mean punk and Sakutaro's a shy, accomplished student. They're complete opposites, but they both start to feel something more than friendship. When Sakutaro aggressively pursues Yu, the latter is gradually overcome with love...!! In addition to the cover story, there are two more heart-throbbing tales!! One is about a guy's dilemma with his pent-up feelings for a good friend, and the other one deals with really, really persistent love!!