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You can check my list http://www.mangago.zone/home/mangalist/219542/ (▰˘◡˘▰)
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http://www.mangago.zone/read-manga/itou_san_kuraka_sui/
That's the first one comes to my mind, a little dark and sad but good ╮( ̄▽ ̄)╭
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http://www.mangago.zone/read-manga/mae_yori_mo_dare_yori_mo/
(one of the chapters)
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meine lieblinge :) (sind aber keine ehemaligen...)
http://www.mangago.zone/read-manga/aiso_tsukashi/
still ongoing aber echt gut!
http://www.mangago.zone/read-manga/mods/
http://www.mangago.zone/read-manga/akanai_tobira/mf/v01/c005/
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Mede shireru yoru no junjou
Both partners are prostitutes who've known each other since they were young
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I have a list for that:
http://www.mangago.zone/home/mangalist/220053/
Recommendations for Yaoi with Prostitution.
Something like they are a couple or will become a couple and one of them sold hisself in the past.
The couple can be the one selling himself with the Client but I would prefer when the Partner wasn't a Client.
Thanks in advance
٩(๑❛ᴗ❛๑)۶