Responses
Dunno if they’re similar to the example you posted, but it’s about fake relationship/marriage:
https://www.mangago.zone/read-manga/part_time_lovers/
https://www.mangago.zone/read-manga/souteigai_no_sweet_marriage/
Recommend me some bl trope like fake dating/arranged married that similars to flip the script plss, only manga and manhwa.