If a creature starts its turn within 10 feet of a gaki, it is overwhelmed by a hunger that dissolves fat and atrophies muscle. It must make a DC 14 Constitution saving throw, taking 11 (2d10) necrotic damage on a failed save, or half as much damage on a successful one.

At the start of its turn, if a creature can see the gaki, it must make a DC 14 Wisdom saving throw. On a failure, it is overcome with a desire to kill and eat the ghost, and it must move as close to the gaki as it can.

The gaki has advantage on melee attack rolls against any creature that doesn’t have all its hp.

The gaki can move through other creatures and objects as if they were difficult terrain. It takes 5 (1d10) force damage if it ends its turn inside an object.