Konyaku Haki sareta Reijou wo Hirotta Ore ga, Ikenai Koto wo Oshiekomu EP3 - Naughty Show Down

Eruca Crawford, Allen's step-sister, suddenly appears to try to drag her brother home. The day quickly turns into a no-holds barred competition when the siblings challenge each other to see who can teach Charlotte the most naughty things in town.