ohshc's manga / #debt(4)

childhood friends start going out because one of them has debts and end up seriously going out. U doesn't trust S and S has to keep reaffirming his feelings.

One guy gets upset that another guy keeps stealing his girlfriends, other guy gets a crush on him and tries to get together with him -parents die leaving a guy and his ill sister with debt, father's friend decides to give his money in exchange for the son