Genes: Yaoi

Detail: Big brother took younger brother to a park and offered him a job dressing as a rabbit and giving balloons to children. While meeting the staff, younger brother met a mysterious boy dressing as a bear and had this feeling that he had known that bear from before. Turned out the boy in the bear was his brother's friend. He used to come to their house when the younger brother was small. The younger brother really loved teddy bear and when he bumped into the older boy in his house, he thought the boy was a cute big teddy boy and got really attached to him.

Merry-Go-Round (KUBO Sumiko)?