Responses
The first one, this?
http://www.mangago.zone/read-manga/mister_mermaid/
Not sure but the 1st one might be this - http://www.mangago.zone/read-manga/unmei_no_hana/
Theres 2 manga i want to find but i dont remember the plot very well so this will be very vague and any help will be appreciated:
the first one is about a guy who kinda forces himself on this other guy's home (i think) and i dont remember the middle but when they finally do it a pearl appears
the second one i only remember the extra but one of the guy's has a good job and the other works in a restaurant or something, one of them wants to meet the family but the other doesnt want to because his sisters will start hitting on the boyfriend, he only has sisters and a mom, and then the family keeps telling the son he got a good catch