The Devil is a Part-Timer!, Vol. 13 (light novel)

The angel Laila and her daughter, the hero Emi are still getting along terribly even after they cooled off following their parent-child fight. Maou is completely fed up with their antics, leaving him in a tight spot when Laila starts explaining the details of her "job" to save a parallel world. Unwilling to take her at her word, Maos demands to a visit to Laila's home. She tries to shoot down the idea but the group ignores her and so starts their journey to Nerima!