Even a Gender-Swapped Hentai Heroine Deserves a Happy Ending

Gender transformation + becoming a bride + somewhat dark

While playing Knight Princess's Chronicle, Li Xian felt such deep sympathy for the tragic fate of the heroine, Lily, that he couldn't help wanting to help her.

Then he woke up and discovered that he had actually transmigrated into the eroge he had been playing, becoming the story's supporting heroine, Isa.

Scenes from the game's bad endings involuntarily appeared in Isa's mind. No matter what, she decided she would find a happy ending in this world.

But when faced with goblins, orcs, high-ranking demons, evil gods, dragons, thugs, slave traders, unscrupulous merchants, lecherous nobles, evil mages, shameless princes, and a greedy church, her struggles seemed utterly futile. Fortunately, whenever Isa fell into a desperate crisis, a knight named Rog would always appear in time to save her. After being rescued again and again, Isa gradually developed feelings for this reliable knight.

So, will Isa manage to save the heroine, Lily, and find a happy ending with Rog in this perilous world?