Yaoi brothers, step brothers, half brothers

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?

Toujou Aki lives with his younger step-brother, Saku who is a university student. Instead of going home to sleep though, Saku will stay out with as many women as possible, to the point of being a man-whore. Aki, on the other hand, has a deep hatred for women, enough to make him nauseous being around them

Daigo’s going to be a university student starting from spring. He has two male cousins who are identical twins, called Shin and Jin. Daigo has always been secretly in love with the kind Jin who’s always treated him like a younger brother. However, his feelings were exposed by Shin, who's always doted on him as well.