From Extra to White Moonlight: Quick Transmigration

She was originally just an extra: the backdrop to the male and female leads' passionate romance, a passerby when the hero fearlessly faced danger, an extra on the villain's journey to defy fate... But later, she became their white moonlight, the one they longed for but could never have, until longing turned into obsession. [Quick transmigration novella, three or four chapters per world] Tentative worlds: Grassroots founding emperor X the scholar's daughter, formerly the founding emperor's employer Fallen immortal turned demonic, overpowered protagonist X the medicine peak elder, an obscure member of the sect for a hundred years Transmigrated man with a harem in the original story X the sect's saintess, his former fiancee who insists on breaking off their engagement Young, famous number-one swordsman in the martial world X the former daughter of a disgraced minister, later a schoolteacher in town Scheming, play-the-pig-to-eat-the-tiger prince fighting for the throne from the cold palace X a fearless, carefree heroine of the martial world Nine Heavens Divine Lord descending to the mortal realm to undergo a love trial X a woman who gathers herbs in the mountains Emperor who insists on taking his minister's wife, even in a second life X the cousin who grew up as childhood sweethearts with a young general, in a sweet everyday romance Nine-tailed fox demon who accidentally enters the mortal world to experience its pleasures X a concubine-born daughter who only wants to escape her secluded household Young movie star who falls in love at first sight and pursues her relentlessly X an ordinary woman on a variety show Elder brother steals younger brother's wife X a woman who sells herself to bury her father and can't tell who her lifesaver is Theme: Embrace every sunrise with a gentle heart