Aiko Kayō

The fate of the world rests on Ueki, an average junior high student. Average until he gains the power to change trash into trees. Granted to him by the enigmatic Mr K., Ueki’s strange power forces him to participate in the 100-fighter "Battle of Supernatural Powers." If Ueki wins the tournament, Mr. K will become the new King of the Celestial World while Ueki will receive the "Talent of Blank", allowing him to choose any power he desires. However, if Ueki gets too many penalties during the game, he will disappear!

Hatsuki is a highschool student living with her sister, Hatsumi, who she has a huge crush on. On Hatsumi's 16th birthday, she is suddenly surrounded by a green light and disappears in front of Hatsuki! She manages to follow Hatsumi with the help of a being resembling a fat baby chick (literally), ending up in a place called "The Great Library", which is full of different worlds stored in books. Hatsumi wasn't there, though, so the search for Hatsuki's great love begins and involves traveling from book to book.

The city is filled with countless urban legends. Strange incidents that occur in the midst of these legends lead people into a labyrinth... It is the five young detective hatchlings who take on these difficult cases. Overflowing with intellectual curiosity, they make the most of their abilities. They are full of intellectual curiosity and show their abilities to the fullest as they run through the city and get to the bottom of the mystery. And what lurks behind the scenes is a professional criminal planner... Through fierce battles with the enemy and encounters with various people, they are sometimes hurt, but they gradually grow up. This is a pop youth mystery that depicts the friendship and adventures of a group of talented detectives.