The hidden king is in Hwarang

How odd it is to walk the streets of your kingdom and have not one of your people know that you are their king, oikawa tooru has been a hidden figure to his kingdom since his birth, the queen has chosen to keep her son who is the king a ruler without a face. Oikawa learns that the longer his mother sits on the throne, the more power she gains. Due to this, Oikawa decides to go against his mother and join a group of young men called 'hwarang' that have been put together to defend their kingdom, to strengthen himself and decide for himself, when the kingdom shall meet their king.

Iwaizumis is a peasant from outside the kingdom main city walls, he travels with a group of mass traders and is smuggled into the city, he ends up getting in a brawl with a queens knight's but wins, this draws attention to him and he is casted into the Hwarang to serve instead of being executed for illegally entering the city.
------------------------------------------------------------------------------------------------------------------------Based of of the korean historical drama called Hwarang, i do not own that drama nor the story line, besides this story will be different regardless, this is an iwaoi fic and involves other characters of Haikyuu as well !! please enjoy!