Throughout Centurion Tenebrae's very long existence, he had seen myriad things and met many people, monsters, and summon spirits. He had become acquainted with some mortals but had never befriended them until very recently. He certainly never thought he would act as a chaperon during a meeting between a monster and a human infant.

How does someone plan a birthday for a boy who has never had one before? For Marta, it is both easier and harder than she might have thought. Maril (Emil x Marta). Spoilers for end of Dawn of the New World.