Thanks to Arios's idiocy a demon is reborn and attacks Horizon. Tania and Kanade attacks its minions, while the twins evacuate the town. Can Rein overcome his demon trauma and fight this vile creature?
Rein is asked to deal with hooligan beating up people at a bridge, benkei style. This leads to meeting a new ultimate species whose ego leads to a fight.
Horizon is now safe and properly protected, with the corrupt lord and Knights arrested. Rein and the girls decide to live in town permanently and head out to look for a house.
Rein attempts to report the vile son of the town Lord to the knights; however, most of them are on the take. He then meets vice captain Stella, whom is one of the few chivalrous knights left.
Learning the lord's son is responsible for the corruption in Horizon, Rein teams up with the righteous vice captain to detain the corrupt Knights and take down the lord. At the same time, Arios has a stupid idea for revenge on Rein.