Looking for a certain yaoi manga but my memory of it is very blur and vague. I hope you can help me find it with this description.

What I remember is the manga is long and has many chapters. The seme is from a rich family while the neko is not or he was a servant or something, i don't really know anymore. From the last chapter, I recall the seme talking with his aniki (turns out to be a neko). They were in good terms but aniki was teasing his cute lil brother. I think there is an epilogue chapter where aniki's orientation was revealed and he then found his partner.

At first, I thought I found it already in Ogawa Chise's works but I really can't find and remember it at all. So please help me!!!