Welp 🤥
Super-dropped. 💩
It's slightly possible that moving towards NTR could have been handled well, if it was foreshadowed or otherwise built toward. The new guy needed more time to assess the situation, think of the possibilities, test the waters, and then attempt to execute his evil plan. That's at least four chapters worth of development that would ratchet up the tension and build a sense of dread and excitement, causing the readers to be at the edge of their seats wondering what was going to happen, and then either finding relief when it was stopped, or falling into despair when witnessing the fruition of the plans, wondering how our actual hero would be able to get back and set things right again, if that was even possible.
Instead we get this HURR DURR incel masturbatory fantasy resulting in a jarring needle-scratch tone shift that violates any faith you have in the author's intensions or abilities as they take the light-hearted ecchi comedy story setting that they had carefully and then smashed it and flushed it down the crapper.
Yeah, that's a deal-breaker for me. GTFO of my Follow list.