lol i don't know if someone know this manga but the art was great

basically the husband have wife who leaves him for some reason(i forgot either she left for job, vacation . have a fight or straight cheating him ? welll blasted my memory)

and his mother in law come to comfort him and take care of him(not in sexual way but like making him food , cleaning house etc)

because this is hentai, the mother in law was a MILF and have beautiful face, busty body

and then they have sex because plot(the husband did not force her, the mother in law was quite a nympho too and seduced him i think )

i remember the husband and mother in law go to a sea ship for vacation to the beach and she wears a bikini