After a Yandere Ghost Turned Evil and Started Haunting Me, I Became a Villain Too?

[Quick transmigration + 1v1 + dark, obsessive love + HE] [A truly powerful heroine, gentle and doting toward the hero VS a pitiful, originally favored hero who turns dark after being tormented] (The only person who can handle a deviant is someone even more twisted!) Shuye fished an interesting little thing out of a pool. When they met, his beautiful yet miserable appearance instantly caught her eye. Shuye immediately decided to help the poor thing change his fate and return to his own world. After completing the commission and collecting her reward, Shuye wondered why there was only such a tiny scrap of the poor thing left. Unwilling to get involved again, Shuye went home and rested for a week, preparing to return to her old line of work. The poor thing didn’t even pretend. He jumped straight into Shuye’s palm and clung there, impossible to shake off. After spending time together in one world, Shuye couldn’t help softening toward him. From then on, she was trapped on the one-way road of being pursued by a little psychopath. (Everything is based on what’s actually in the story.) 1. Getting tangled up with a darkened little brat (ABO sci-fi): The brat stops at nothing, willing to ruin his health and shorten his life just to keep someone by his side. 2. Getting tangled up with a gloomy ghost (historical fantasy): After being manipulated and changed, a man becomes completely enamored with the pleasure of being dominated. 3. Getting tangled up with a black lotus (modern apocalypse): Even without awakening any powers, she still wins the kind of doting affection others envy. 4. To be decided… A few notes: 1. The stories generally start with a strong heroine and a weaker hero. After all, the pitiful ones need saving, so they can’t be too powerful. 2. Expect dark rooms, confinement, and forced romance. Basically, let’s see how far I can take the madness. 3. It’s all playful games between a couple. Nothing will happen if either person is truly unwilling!