The Dungeon Meshi anime typically ends at a specific point in the manga storyline. However, it might vary depending on the adaptation decisions made by the producers.
In a Laios x Marcille fanfiction, one interesting aspect could be how their different personalities interact. Laios is often focused on his goals and Marcille is more empathetic. Their relationship could be a study in contrast and complementarity. For example, Marcille could help Laios see the human side of things more, while Laios could inspire Marcille to be more bold in her actions.
There's no prominent character named Marcille Wallis in the well - known 'Pulp Fiction'. It could be that it's a name that is either misremembered or from a very niche part of the film's production or a really deep - cut reference. Maybe it's an alias for someone involved in the making of the movie that only a few insiders would know about.