Unexpected playmates HisokaXOC

In the shadowed corridors of the Hunter Association, power was a fragile thing, shifting in the wake of Chairman Netero's death. Rose Hill, the sister of Pariston Hill, the Association's chief legal officer, was a master of stability amid chaos. Sharp, composed, and unyielding, she thrived behind the scenes, navigating treacherous waters with a precision that made her indispensable.
But Rose's world wasn't confined to contracts and negotiations. Beneath her polished exterior lay a woman skilled in combat, deception, and manipulation-traits she wielded when diplomacy failed. It was this duality that caught the eye of Hisoka, the enigmatic and deadly magician, during a fateful encounter in the Association's grand hall.
Drawn to Rose's unshakable confidence and enigmatic aura, Hisoka couldn't resist the allure of unraveling her mysteries. What began as curiosity evolved into a dangerous partnership, their paths intertwining in a world of deadly assignments, hidden motives, and a simmering tension neither could ignore.
Together, they delved into the underbelly of the Hunter world, where alliances were fleeting, and trust was a weapon. For Hisoka, Rose was a challenge like no other. For Rose, Hisoka was an unpredictable force that tested her resolve.
In the end who will outwit the other?

*Major spoilers of the manga and everything after the anime.