
wait so did they get their memories erased or something at the end of the first story after Ito killed the boss? I loooved the stories but i was just confused about Kyo working at the bar all of the sudden.

The boss injected Ito some type of drug that would lose his memory, and then when re finally "wakes" up he see Kyosuke being raped by the 2 guys. the boss comments about how out of it he is and that he made have over done it with the drugs.
http://www.mangago.zone/read-manga/itou_san_kuraka_sui/mi/mi_chapter-5/22/
well i mean i guess is more convenient to kill a partner you don't want to be with than to divorce them in a way... jk
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Good future advice (⊙…⊙ )
Well killing will save you from all the paperwork from divorcing but it's only good if you can get away with it, not let anyone find out it was you who killed o/