Crane is demoted to F-rank, meaning he can only contract F-rank pets, which puts him at a severe disadvantage against S-rank opponents. Despite doubts, he is instructed to find an F pet with hidden evolution potential. Using an ability called All-Seeing Eye, he discovers Bubble, a weak-looking F pet that can evolve into an S-rank Water Fairy. While others mock Bubble's poor appearance and low combat power, Crane challenges his rival, commanding Bubble to evolve. The episode ends as Bubble begins its evolution, leaving the outcome uncertain and the challenge imminent.