03 april 2024: I only read the main story which was ch 1.0-1.2, 5.5 and 6. About a yakuza older brother with 12 year age gap coming back for is cute little brother. Only now the little brother has turned into a delinquent. The older one doesn't think its weird to jerk off his brother when he had both arms and legs broken, but then ends up getting a boner himself. That's when he realizes what he did was not okay and he should quickly put some distance. However, the delinquent brother had gotten too comfortable with his aniki, he probably wasn't even aware of his own feelings but he started seeking his aniki out. In the end aniki decided to not stop it and go with the flow, if his brother keeps giving him opportunities he would use them.
It ended ambiguously. After aniki kissed him and apologized they never did anything further i think. So it went back to a normal platonic relationship? Not sure. But for sure though aniki definitely loves his little brother, and not just in a platonic way.
This was definitely morally fucked up. But I don't know if it would called a love story, because that depends on how the story would have progressed. It definitely was incest, but I'm also not sure if they continue down the incest road.
ngl but i did like the siblings story and i would give it a 5 stars but overall i would rate all the story like 4 stars. this manga is full of creative and interesting stories like fr. also it is shounen-ai and not yaoi so yeah.