Anohi Bokura wa Koutei de Hot

Ch01 & Ch04) High-school student and tattoo artist Tohru is holding a secret love for his friend. So when he's confessed to by his junior he turns the boy down flat. But Katsumi isn't one to give up easily.
Ch02 & Ch05) Former students and current sensei's Kikawa and Meguro had a relationship as children. But that was all over years ago, right? So why can't Kikawa stop thinking about Meguro?
Ch03 & Ch06) Student Katahana can't help but wonder why his close friend Tohmune always wears an undershirt. What exactly is he trying to hide underneath his clothes?
Ch07-10) All the romances intertwine as we see a little of each couple in each story.