Finding a manga

I was reading a manga about a guy being reincarnated into a game but he ended up as a (incredibly) minor character. The character was fat and was a duke (?) And he managed a small town , there's also a cute maid with blue hair and shes super loyal to him. He meets character like a demon(who steals his first kiss because it was his biggest fear) and a kid who's really good at sales.(He helps him sell a potion that heal an "incurable" sickness) (He also mastered magic and became slimmer and got rid of corruption in his town) The page i was reading it on closed and i didn't have the name saved T-T