Ryou got new 3 brothers after his dad remarried. Unfortunately three months after, their dad died and their mom got cancer this tragedy lead them to strive on their own, living themselves caring for each other.
Ryou (oldest from dad side) and Hayato (2nd son of mom)
Kento (eldest son of mom) and Take (friend of the youngest Masato, mom son)
After Ame's father remarries, he's not sure what to do with 3 new brothers and a stepmother at the age of 19. As he comes to appreciate his happy new home and family the glue holding them together starts to come undone. How will these 4 brothers weather tragedy after tragedy and stay together?