The Devil is a Part-Timer! Light Novel Vol. 3

A Gate manifests itself in the frontyard of the Provisional Demon Castle (a 60-year old six-tatami sized unit). And out from the Gate comes a little girl who calls the Demon King and the Hero 'Papa' and 'Mama'! To think that these two had such a history......Ashiya and Chiho are shocked to the core, yet the Demon King...