Naichaisou yo.

A collection includes eight stories about romantic relationships between boys. One story follows Aoi, Hajime, and Gaku. After finding a child named Gaku in a park with a note asking to be adopted, Aoi and Hajime both wish to care for him. Gaku chooses Aoi, and they raise him as a brother. Over ten years, Gaku grows into a handsome young man unaware of his adoption. He and Aoi share a close bond, but Aoi begins to feel more than familial love. Hajime, who has loved Aoi for some time, notices Aoi's feelings for Gaku, who also seems to have affection for Aoi. Both Aoi and Gaku are unsure how to express their emotions, fearing the other only sees them as siblings. Eventually, Gaku learns about his adoption and the fact that he and Aoi are not blood-related.