The village is attacked by Polters, creatures that turn humans into shrubs, Yugo and his team go to the Forbidden Forest to find out why the Polters are doing this. Inside they encounter the ruler of the forest, the Soft Oak, who plans to turn all humans into trees in revenge for the destruction his forest has suffered. Amalia, a member of Yugo's party, convinces Soft Oak that not all men are like this and that only free men can protect the forests. She then heals him with magic and he agrees to turn the shrubs back into humans. In the village, Yugo and his father are attacked by the time villain from 12 years ago, now revealed to be a Xelor named Nox. Nox manipulates time to age Alibert rapidly and he calls Yugo a Eliatrope, swearing to get Yugo's Wakfu one day. Alibert, knowing that Yugo deserves to know the truth, tells him that his real family, the Eliatrope race, are out there somewhere at a place called Oma Island. Yugo's friends agree to help him find his real family and stop Nox and set off for the adventure.