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Any BL where the couple goes in like a sex dungeon to have some fun?
https://myreadingmanga.info/heatwave-kaitou-yuuhi-naedoko-shounen-2-breeding-boys-2-eng/
This is the only thing I know that comes close to the description
Looking for a well written tragic bl with beautiful art. Thanks Σ(っ°Д °;)っ
https://www.mangago.zone/read-manga/1866/
It's short but let's see you cry
https://www.mangago.zone/read-manga/incidentally_living_together/
https://www.mangago.zone/read-manga/eyes_clouded_by_the_tiger/
https://www.mangago.zone/read-manga/10_years_where_i_loved_you_the_most/
https://www.mangago.zone/read-manga/teach_me_1/
https://www.mangago.zone/read-manga/beyond_memories/
https://www.mangago.zone/read-manga/mukuchi_na_omoi_wa_koi_to_naru/
https://www.mangago.zone/read-manga/yasashiku_furetai/
Love the reference to Marry my husband in ch.1 (▰˘◡˘▰)