I can't remember the title but it's a BL about a couple who likes the outdoor play and the seme hired someone to "watch" them but he's actually blind
https://www.mangago.me/read-manga/shamed_thanks_to_you/
Thank you so much!!
I can't remember the title but it's a BL about a couple who likes the outdoor play and the seme hired someone to "watch" them but he's actually blind