For the first time, Myung-Ee falls into a real fight against the Fox Tribe. She is determined to do whatever she can to protect Yu-Da from all the hungry foxes, but instead she encounters the "Black" Yu-Da! How can this be? Is Yu-Da's memory back, or was he just faking?

Myung-Ee decides to rescue Yu-Da from the Fox Tribe! She begins by journeying to Junghyun Mountain to join the Soon-La Army. But first she must pass a test of pain and endurance. Meanwhile, more secrets are revealed about the kind and gentle Yu-Da...

For the first time, Myung-Ee falls into a real fight against the Fox Tribe. She is determined to do whatever she can to protect Yu-Da from all the hungry foxes, but instead she encounters the "Black" Yu-Da! How can this be? Is Yu-Da's memory back, or was he just faking?

All this time, Myung-Ee has wanted nothing more than to save Yu-Da the Black Rabbit from the horrific fate of being killed and having his immortality-granting liver eaten by Hang-Ah, the leader of the Moon Foxes. But when both she and Yu-Da regain the memories of their past lives, Myung-Ee is suddenly preoccupied with a new conviction to save Hang-Ah! What does this change of heart mean for Yu-Da, her childhood friend, who has the power to do just that with his death?! Find out as Myung-Ee and Yu-Da face off in the intense conclusion to Moon Boy!

Apart from the fact that the color of her eyes turn red when the moon rises, Myung-Ee is your average, albeit boy crazy fifth grader. After picking a fight with her classmate Yu-Da Lee, she discovers a startling secret: the two of them are "earth rabbits" being hunted by the "fox tribe" of the moon! Five years pass and Myung-Ee transfers to a new school in search of pretty boys. There, she unexpectedly reunites with Yu-Da. The problem is, he mysteriously doesn't remember a thing about her or their shared past at all!

As Ho-Rang tries to stave off the swarms of escaped low level foxes, Myung-Ee grudgingly forms an uneasy alliance with Sa-Eun in order to track down Yu-Da, who has opted to reject both the Rabbits and the Foxes and side with the eerie Ha-Eun. But when the two part ways upon reaching Ha-Eun's headquarters, they're both confronted by their pasts instead of their quarry! As Sa-Eun discovers the truth behind his elder brother's fate, Myung-Ee begins to lapse into her memories from a past life! And what she remembers will shift alliances and alter the fates of everyone involved!

Having survived the battle with the Soon-La renegades, Myung-Ee can't remember anything about the fight! In her quest to discover what really happened, she finds herself crossing paths with Sa-Eun more than once. Though he stays silent about the battle, he lets slip a shocking secret about himself to his rabbit adversary! Meanwhile, Yu-Da has returned safely with the help of two mysterious friends...who seem intent to wreak havoc on both the Rabbit and Fox tribes! Is the Black Rabbit slipping away from Myung-Ee for good?