I remember reading this manga when i was little, i believe it was in korean so i think it was a manhwa but than again it could've been a manga translated into korean.

Anyways the story (you'll have to forgive me if some of the details are off, this was like 10 years ago) was about these two highschoolers, a guy and a girl, who are going on a fieldtrip. The guys wearing a medallion with a dragon on it and it randomly summons a dragon that takes the guy and a girl to ancient korea or maybe china. They wake up and they see like the aftermaths of a battle. Anyways the story continues with the guy turning into this amazing martial artist and the girl turns into... freak i dont remember. Some kind of princess i think

I'm guessing this is a pretty old manga or manhwa cause I read it when i was 8 or 9. Ha but any help would be appreciated

Ryuurouden

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The Deviant