In search of manga

I read this manga way back before even mangago started.. i cant remember the tittle but its always on my head now..

It a yaoi, seme is famous for his works, one day he buys a robot that looks like him, there are 2rules 1. The owners word are absulute 2. Robot cant die, but if the owner dies, the robot dies/malfunction.. (not sure if it is only 2 or more rules but im sure with rule #2 )

He buy it because he doesnt have a time for his lover, he command the robot to be like him.. so he sends the robot to his gatherings while he laze around with his lover, no one noticed that one in the gathering is the robot because it really acts like him and looks like him.. but he bagan to neglect his uke too.. so he also sends his robot to his uke, at first he only sends the robot if he forgot their date but at end he completely neglect the uke and let the robot do it for him.. then one day day he realize he wants to be part of society again.. he became so inspired he paints(lets asume he is a painter) and hurriedly go somewhere to pass his painting for contest.. but in his surprise we won something a weeks ago, and everyone congratulate him even the other people he doesnt know..when he looked for what he won, the painting he just made and the painting that won which the robot made is the same.. he was so shocked he run to his uke, he found the robot and the uke so intimate, he got mad so he command the robot to stop flirting to his uke but the robot didnt obey (cant remember why) and the uke believes that the robot is the real seme because they are together the whole time since day 1 and seme is the robot.. so the seme had to prove himself that he is the real seme..

I still remember the end but i will not spoil so you can read if someone hasnt read it yet.. please help me find and read this again because it really bugs me! I want to read it again~

PS:

sorry for my terrible english...

Please help me

Thank you in advance!