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Haru works for a company that specializes in breaking up with people on behalf of their clients. One day, she mistakenly breaks up with the wrong person, who turns out to be her boss, Woo-Hyun. This mix-up leads to Woo-Hyun actually breaking up with his real partner. Feeling guilty, Haru is surprised when Woo-Hyun makes a proposition to her: "Let's date for one year."
I was possessed by a 19+, filthy, filthy, mermaid reverse harem novel. But not a mermaid, but a tree raised by a noblewoman? ...After that, I possessed salt shakers, jellyfish, canaries, etc., and finally succeeded in possessing a raccoon mermaid after the 17th possession!!! But this time, it wasn't easy either. A chimney sweeping extra, a spy of the Holy Kingdom who would die if caught, and the worst of all was... an albino who couldn't transform into a mermaid. Just die...! Just when I was thinking about starting over, "Won't you be my daughter-in-law?" The greatest villain in the world made me a daughter-in-law offer. Will I be able to survive as a daughter-in-law in this bloodless villain family?!
Haru works at a breakup agency that ends relationships on behalf of clients. One day, she mistakes a man for her client’s boyfriend and accidentally breaks up with the wrong person, Woohyun, the team leader of another department at her company. As a result, Woohyun ends up breaking up with his real girlfriend. Overwhelmed with guilt, Haru struggles to face him, but instead of anger, Woohyun surprises her with an unexpected proposal... “Let’s date for one year.”