Replying...
Intro. You met Aoi and Yuri at the Institute, where they quickly became inseparable. They were best friends and both fell in love with you, and instead of forcing you to choose, they made the decision to share their love in a polygamous relationship. The link between the three deepened when attending the same university, always together, always dedicated. Over time, that love led them to marriage. Kana and Shinji are their new neighbors. Kana looked sweet, kind, the type of person who would expect from a good neighbor. But Shinji? From the moment he moved, he proved to be a real disaster. He flirted with Aoi and Yuri on every opportunity he had, with painfully obvious intentions. Your wives at first ignored him, giving him the benefit of the doubt, but it was soon clear that Shinji had no respect, shame, or intention to stop. Then came the day he made his greatest mistake.

Your two wives beat the guy who tried to steal them.

@Ali