Gacha World : Corruption [Book 1]

Once upon a time, a boy/girl named (F/N)(L/N) dissappear from his/her room. Him/herself doesn't even know what happen. But suddenly s/he was holding a sword and a little fairy is flying above him/her. (Y/N) was now in a whole other world, a world full of fighting and corruption. S/he wish to go back to his/her origina...