Its just a one-shot with nothing to do with lore
Translate:
(Dietrich had just finished showering and he really wanted to sleep)
Dietrich - "...Isaak"
Isaak - "Huh?"
Dietrich - "Why are the Kobolds on the bed?"
Isaak - "They want to sleep with me"
Dietrich - "So where am I going to sleep?!"
Isaak - "Go sleep on the sofa"









