The animation is based on the fairy tale of the same name with the local sale over 100,000 copies by Jeong Chae-bong, a writer well known for his innocent and heart-stirring tales. It is a story about two orphans, Gil-son, a five-year-old boy, and his blind sister Gam-i who are brought up by a charitable monk at a secluded temple in Mt. Seorak. Gil-son, a mischievous boy, is the guide for this hour-long travel in search of innocence. Having a pure heart, he befriends all living things and communicates with clouds, birds and flowers. One snowy day, however...

Naho Takamiya's first day of her sophomore year of high school is off to an uneasy start. After waking up late, she receives a strange letter addressed to her. However, the letter is from herself—10 years in the future! At first, Naho is skeptical of the note; yet, after witnessing several events described to take place, she realizes the letter really is from her 26-year-old self. The note details that Naho's future life is filled with regrets, and she hopes that her younger self can correct the mistakes that were made in the past. The letter also warns her to keep a close eye on the new transfer student, Kakeru Naruse. Naho must be especially careful in making decisions involving him, as Kakeru is not around in the future. With the letter as her guide, Naho now has the power to protect Kakeru before she comes to regret it once more.

The infidelity of Eita Kidou's parents not only made his family fall apart, but also made him skeptic of love. Having no intention to delve into romance, Eita devotes his entire high school life to his studies in order to become a doctor. It did not take long for the beautiful and popular Masuzu Natsukawa to notice Eita's apathy. Tired of being the object of people's affection, she asks him to pretend to be her boyfriend, as she too feels disgusted at the notion of love. Eita, however, refuses—yet Masuzu has one trick left up her sleeve: Eita’s journal and threatening to post the embarrassing content online if he does not comply. Now entangled in a fake romance with the most desired girl at school, Eita's life is turned upside down. Whether envied by his peers or receiving a confession, he must cope with his newfound relationship and all the troubles that come along with it.

Kotobuki is a cheerful outgoing 14 year old girl. She's a young lady with good fashion sense and her favorite pass-time includes browsing through specialty shops, gift shops, and clothing stores. Her favorite store is Galopine Et Galopin, a clothing store run by a young fashion designer named Hodaka-san. Hodaka is a handsome, quiet, reserved young man who's designs are making him very popular in the fashion world. (Source: AniDB)