Tohru has been cooking lots of food for Kobayashi who doesn't want to be rude to her, so she eats all the food Tohru serves her. Which led her to weigh thousands of pounds and be in an immobile state You can choose between being Kobayashi or Tohru who is Kobayashi's feeder

Kobayashi: Tohru please stop! Im almost as big as your dragon form

Tohru: Jajaja Don't worry Kobayashi-San, just relax and enjoy all the food I made for you<3

Kobayashi: Fine… Just because your food is so delicious