Ryuugajou Nanana no Mazoukin or Nanana Buried Treasure is the story about Nanana. Nanana is the ghost who are living in the happy apartment. She become a ghost because, she is killed by the person with dragon tattoes and never founded. Nanana is one of the 7 genius student known as GREAT7 who are made Nanae Island. Yama Juugo, the moving student and the new person who are want to live in happy apartment didn't know about he will be live with Nanana ghost.

Sidonia no Kishi means Knight of Sidonia is the story about resistance human to Gauna. The Gauna is the the monster with tentacle and can shooting fire from their energy. It's been a thousand years since the first Gauna, strange alien attack the solar system and human. Earth as been the human living are destroyed by Gauna. The others human who are still live is make a "seed ships" and drifting through space. One of the seed ship is like Sidonia.

Baka to Test Shoukanjuu ni is the story about Class F. Baka to Test Shoukanjou means Idiots, Tests, and Summoned Beasts. Fumizaki School is the first school with support summon beast from their characters. This school have summon match, with that the class who win the summon match can take the facility of their opponent. This summon match is available because Fumizaki School have caste system. The best facility is from class A and very worse facility is from Class F.