You play as a person that falls into the ruins of undertail, but instead of being the average person. You are a feeder ready to fatten any monster that gets in your way, do anything to fill up any foe, your basic attacks are now change into a feeding attack and instead of damage it's weight gain, the moment the enemy is immobile the battle ends and they'll lazyling move aside, you can also recruit them if you convenience them enough, able to unlock newer ways to fatten the monsters of undertail.