Taking Control of the Boss in a Horror Game

[Beautiful, wealthy, universally adored female lead x gloomy, obsessive final boss male lead | Infinite-level game | Mild horror | Romantic tension | Coercive romance | Yandere]

She stumbled into the terrifying "Game of Survival" and got involved with a dead Boss, unlocking a mode where the more recklessly she acted, the luckier she got.

The bad news: she became his permanent blood bag, unable to live well or die.

The good news: the Boss was technically dead but still moving, emotionally stable, and even when she slapped him, he was more afraid she might lick his hand...

Oh my god! Help!!!

In real life, if someone tried to force her into a relationship, she could call the police!

But if a ghost tried it in the game, all she could do was... cling to him?

Cling to the Boss's leg and enjoy an easy ride through life?

No way!! Why does the Boss look like he's enjoying this?

...Has she been played?

[Some author-invented details; leave your brain at the door. The female lead is a little mischievous but not stupid, and knows what's what. She's not an absolutely dominant female lead, but she rarely gets pushed around.]