It is said that train stations are not only an end and a beginning for many, but also are a place for lost and forgotten objects—and for those who are forgotten. On a rain-soaked day, Minky Momo rides the train toward her final destination and ends up conversing with an old man who is trying to reunite with someone very important to him. After discovering he left his passport on the train, Momo embarks to try to find him and consequently runs into both her parallel self, and a young girl who is in need of both of their help. She has ties to the station, and yearns to find a resolution to her troubles...

Hasukawa Kazuya is in a terrible bind. His brother's new wife is also the woman that Kazuya secretly loves. Determined to avoid them both, Kazuya leaves home to live in the student dorm called Greenwood. There, he hopes to find peace of mind. Unfortunately for Kazuya, stability and peace are the last things one might find at Greenwood - home of the weirdest characters on campus.

Momo is the princess of Fenarinarsa, a land of dreams that is getting further and further from Earth. She is sent to help the Earth regain faith in its dreams. To assist her are her friends Sindbook, Mocha, and Pipiru and her magic wand that transforms her into an adult. She's ready and willing to help anyone she can in order to make their dream come true, no matter what happens.

Sixth grader Sana Kurata has a perfect life. Her mother is a (fairly) successful author, she has a young man employed to keep her happy and safe, and best of all, she is the star of the children's television show Kodomo no Omocha. There's just one thing bothering her, and that's Akito Hayama. Akito is a classmate of Sana's, and ever since he's started acting out in class, the rest of the boys have followed his example. Every day, the girls and the teacher wage a battle to keep the class under control and to get some actual learning done. That rotten Akito… Sana won't stand for this! The hyperactive Sana decides to dig deeper and find out what makes Akito tick, so class can go back to normal and the teacher can stop spending every day crying instead of teaching. But the more she learns about him, the more she realizes that there might be more to Akito than meets the eye.