Kanenone Gakuen is an all-male boarding school located in the countryside of Japan. Although an all-male school is nothing new, life can become quite difficult when there are no female students for miles around. In order to help the psychological health of everyone involved, the school board has decided to try and merge with the nearest all-girl boarding school in order to become co-ed. The boys of Kanenone are more than thrilled at the prospect, and the girls are curious as to how interesting school life might become if there were more boys around. Before any serious decisions are made, the girls have been invited to stay at Kanenone for one month as a test. Green Green follows Yuusuke Takazaki and his naughty room mates called the Baka (Idiot) Trio, and their ability to talk to the girls without making complete fools of themselves. But as soon as the school bus with the girls arrives, things become weird, hormonal, and hysterical. In particular, a girl named Midori Chitose leaps off the bus and immediately embraces a very confused Yuusuke. Is he a natural ladies' man, or do the two of them have a shared history that he is not aware of?

Once upon a time, there were two rival kingdoms that did not get along. Every day, they argued over insignificant matters. When a dispute over removing dog waste ultimately turned into a war, God swiftly intervened and directed the two nation's leaders to exchange the most beautiful girl and the most intelligent young man for bride and bridegroom, respectively. Saara, the princess of country A, meets the prince of country B, Naranbayar. As they pretend to be a married couple to protect the peace between the countries, they find themselves gradually falling in love.

Two neighboring childhood friends. An airheaded girl and the boy who takes care of her like a mother hen. And of course, there is his family background with a tiny, insignificant supernatural secret. Now that her parents have left the girl in their neighbor's care, will she ever discover her friend's secret?

Kiki, a 13-year-old witch-in-training, must spend a year living on her own in a distant town in order to become a full-fledged witch. Leaving her family and friends, Kiki undertakes this tradition when she flies out into the open world atop her broomstick with her black cat Jiji.

As she settles down in the coastal town of Koriko, Kiki struggles to adapt and ends up wandering the streets with no place to stay—until she encounters Osono, who offers Kiki boarding in exchange for making deliveries for her small bakery. Before long, Kiki decides to open her own courier service by broomstick, beginning her journey to independence. In attempting to find her place among the townsfolk, Kiki brings with her exciting new experiences and comes to understand the true meaning of responsibility.