Looking for a Yaoi Manga

Its about a delinquent who's been fighting through tough opponents and when he comes to fight the leader of this one group he falls in love...? Specific details being that the leader has a motorcycle and is like always surrounded by cats, the fighting one is compared to a "mad dog." Also the leader is only leading because the former leader left, but he has unrequited feelings for the former leader... God I feel like I'm rambling but if someone can help me I wanna read this on#－.－)e again!