Guys, Guys (and girls), i think i finally cracked all of this mess to two possibilities.
First, the manga got axed and had to be completed at most, i don't know, chapter 10 and than the author found a loop hole and made infinity 8.*** chapters. But as a revenge he put a rape arc as a middle finger to the publisher.
Second, the author want the series to be axed. Maybe because he don't liked the cleaning or rom-com aspect and initially his editor convinced him to draw it and know he regret. He than proposed the introduction of a new character with a trauma on chapter 8. Than proceed to exploit the multi 8.*** chapters and makes the trauma a rape arc, which angers fans and publisher alike, resulting in a axed serialization.