Overlord

The Overlord watch order begins with Episodes 1-13 and includes two compilation movies plus the Pure Pure Pleiades OVA short across the full run. After the first season's Episodes 1-13, the films Overlord: The Undead King and Overlord: The Dark Warrior recap that opening arc — you can skip them if you have already watched Season 1, since they cover the same events. From there the series continues through its later episode blocks, with the Pure Pure Pleiades I OVA offering comedic side stories along the way. For a first watch, the correct order is to follow the numbered TV episodes straight through and treat the two recap movies as optional catch-ups rather than new story. Anyone marathoning everything including all movies and extras should place the films right after the first season and the OVA between the later cours, exactly as listed here.