Ryou and Keiichiro learn that mew aqua may have been made by the aliens when they inhabited Earth. A strange type of energy begins emerging in Tokyo and trees grow out of control, turning the city into a forest. The Mew Mews find something that appears to be a large mew aqua in a tree but before they collect it, Tart arrives and turns the tree into a chimera anima. During the fight, Mew Ichigo realizes that Ryou cannot be the Blue Knight as they both appear at the battle to aid her. The Mew Mews defeat the monster, but they are unable to figure out what caused the forest to appear in the first place.

原宿突然被樹海包圍，貓貓隊得知後前去偵查，不想在樹海中遇到了阿派和蛋塔，雙方展開了一場激烈的戰鬥。戰鬥中貓貓隊突然感覺呼吸困難，無法繼續做戰，幸好白金及時趕來並給她們服下特殊糖果，大家呼吸恢復正常，此時藍騎士出現來保護小莓，之前一直疑惑的小莓終於清楚，白金和藍騎士不是同一個人。

原宿突然被树海包围，猫猫队得知后前去侦查，不想在树海中遇到了阿派和蛋塔，双方展开了一场激烈的战斗。战斗中猫猫队突然感觉呼吸困难，无法继续做战，幸好白金及时赶来并给她们服下特殊糖果，大家呼吸恢复正常，此时蓝骑士出现来保护小莓，之前一直疑惑的小莓终于清楚，白金和蓝骑士不是同一个人。

La ville est engloutie dans une forêt. Les Mew Mew suspectent la dernière Eau Bleue de se cacher dans un arbre, mais elles ne sont pas les seules...