What is that isekai manhwa/manga where the MC was only making

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story identification - Isekai manga where the main character wanted to learn magic but had to leave his home town because he didn't want to marry his sister - Science Fiction

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Lf manhwa/manga where mc doesn't hide his power : r/manhwa

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solo leveling], Manga MC (lighthearted and fun characters), Manhwa MC (bunch of A holes, and cold hearted), Manhua MC (full of self insert and OP for lame reasons), so what MC would

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Since I've Entered the World of Romantic Comedy Manga, I'll Do My Best to Make the Heroine Who Doesn't Stick With the Hero Happy. - Novel Updates

What is that isekai manhwa/manga where the MC was only making things up but it became real, but the MC is not aware that the things he was making up is actually