When she goes to see her new school, Meio Academy, she meets a young man who is replanting a Tanpopo (dandelion) flower.

In an effort to change the social hierarchy of the school and also find some new friends, Tanpopo cheerfully starts the "Planting Club".

Soon, she attracts the attention of students like the insincerely kind Saionji Tsukiko and Kouki, who begins to show his kinder side.

However, just as Tanpopo and Kouki's friendship develops and their gardening club grows, secrets of Kugyou family life are revealed.

Increasing tensions result as Tanpopo begins to fall in love with Kouki and he reciprocates, though is held back as he is engaged to another girl of the same status.