Responses
Elderly Millionaire couple, I mean. MC is bottom and ML is Top but I'm not sure about it too. (▰˘◡˘▰)
I think you’re talking about “dead or alive”
https://www.mangago.me/read-manga/dead_or_alive/
So, the ML is the wanted criminal for tricking millionaire's elderly couple and working in some family's farm hiding his identity and ML is a kind of hitman who kills people and he'll keep killing until he reaches 1000 people died by his hands and he is also kind of helping the police too.
MC has kinda blonde hair, I believe, and it was kind of Western comic but I'm not sure, but it's based in America's dessert cowboy kida stuff.