I just read this
http://www.mangago.me/read-manga/anata_no_koto_wa_sorehodo/
Drug candy is amazing. All about cheating
Holiday Love Fuufukan Renai . It will make you cry
Drug candy
Household Affair
Hate Mate
SSTUDY
polyamory
anyone knows mangas about cheating husband, wife, gf or bf? please!!