Mashou no Nie 3

Van Clad met his end through betrayal and murder at the hands of his own crew three hundred years ago, defining his final moments. With his dying breath, he swore revenge on the descendants of those responsible. Fast forward to the present, and naval officer Klaus Ainhart stumbles onto Van Clad's tomb — which turns out to be a very bad idea, because Van Clad promptly takes over his body. Here's where it gets interesting: the kingdom Klaus serves was founded by the very bloodline Van Clad wants to destroy. So now this ancient, vengeful pirate is walking around in a young officer's body, with full access to the royal court and a centuries-old grudge to settle. His targets are Princesses Iris and Mireille von Austria, and he's patient enough to play the long game. The setup blends supernatural possession with a maritime historical backdrop, and the two-episode OVA moves quickly once the premise is established. The animation handles both the seafaring atmosphere and the kingdom's environment with solid production quality from Anime Antenna Iinkai, adapted from a visual novel source. If you've watched Conquering the Queen or Kuroinu and appreciated that mix of dark fantasy plotting with adult content, this hits a similar note. Fans of Taimanin Asagi's villain-driven narratives will also find the dynamic between Klaus and Van Clad familiar territory. It's a niche pick, but the revenge framing gives it more narrative backbone than most entries in the genre.