By Chapter 80, the story had diverged wildly. The "NTR" wasn't about sex; it was about leverage, information, and psychological warfare. Hina wasn't falling in love with Ren; she was scared of him, but also indebted to him because he saved her family from bankruptcy (a move the original manga never included).
Yes, you read that correctly. In Chapter 81, Yuya discovered a diary that Ren’s original soul (the real, evil Ren) left behind. But because Kaito is a different soul, the diary reads like a schizophrenic confession. It details the future. It mentions "manga panels" and "plot holes." By Chapter 80, the story had diverged wildly
The left side shows Yuya, standing outside the penthouse in the rain, holding a USB drive labeled "PROOF OF STALKING." He is about to upload it to every news outlet. Yes, you read that correctly