Wild Rose That Catches and Beats Three Enemy Cats

She knew he liked her, but she was determined to take advantage of him. The resources for beating up enemies are more abundant than imagined, so she will fish for him even if she doesn't like him. The male protagonist Killua is set after Killua becomes an adult. Men chase women. The heroine is a bad woman. I don't like her at first, but later I like the male protagonist. Purpose: Live hard and the sky will be clear