Quick Transmigration: Even Supporting Characters Deserve to Live Life Their Own Way

In a Reading Slump. Looking for Well-Written Crossover Drama Fics.

For readers who've been reading for over ten years: no awkward, tacky, naive, saintly, or ridiculous plots. The female lead should be levelheaded, not someone who loses her mind over romance. (A comprehensive film-and-TV story where the protagonist transmigrates into various TV dramas and novels to complete missions.)

Ultraman Fanfiction, Female-Oriented. Romance Is Optional! I'm Out of Books to Read!

Ultraman! (The Protagonist Is a Woman!)

Please recommend Ultraman stories with a female protagonist. I'm begging you!

Transmigrating Into TV Shows: Eternal Love, Ashes of Love, Princess Agents, The Journey of Flower

Transmigrate into a Female Side Character from a Film or TV Show. The Protagonist Shouldn't Be a New Character, and Don't Change the Point of View

I'm looking for books like "Transmigrating Across Worlds: The Supporting Female Character's Comeback". It could also be about a supporting character's younger sister or family member transmigrating into a story as a female supporting character and helping them fulfill their wishes.