Please, Live Happily with the Heroine! (...Not Me)

When she opened her eyes, Lumine found herself in a world she knew only from her brother's favorite game-Teyvat, a land of gods, visions, and fate.

But something has gone terribly wrong.
Her soul has been placed inside this world's version of Lumine, the Traveler who can't return home... unless she fulfills one strange condition:

"Help the villain find happiness," Paimon had said.

That villain is none other than Prince Scaramouche-the arrogant, lonely heir of Inazuma, whose sharp tongue hides old wounds and an abandoned heart.

Disguised as a palace maid, Lumine slowly unravels the truth behind his cruelty: a misunderstanding between mother and son, born from grief and silence. Through patience and kindness, she helps mend what was broken-between the prince, his mother the Queen, and perhaps... herself.

Yet as peace returns to the palace, her own mission nears its end.
The moment Scaramouche finds love with the heroine of this world, Lumine can finally go home.

So why does her heart ache when she says-

"Please, live happily with the heroine."

And why does the villain, now smiling faintly for the first time, whisper back-

"Don't go just yet."

A story of worlds intertwined, fate rewritten, and a girl who entered a game only to find herself in its villain's heart.

(The characters here in this Fanfic are from Hoyoverse.)
Cover photo, not mine. Credits to the artist.