Gravekeeper

Gravekeeper (グレイプキーパー) is an undead that appeared after the Catastrophe in Mass for the Dead.

Appearance
A amalgam of several five skeletons merged as a single being. Most of the skeletons are merged on its back, making it look like a hunchback.

Abilities
It is said to be a middle tier undead monster.

Trivia

 * This undead is said to be a rare occurrence, as even though the negative energy is increasing, it is unlikely that the undead will occur as much as several low-level undead gather.