The story is set in the 22nd century where space travel, planet colonization and anti-gravity basketball are practically everyday things. Planet Earth has become uninhabitable, and therefore people live in colonies on the surrounding planets. On a school field trip, a mistake causes the protagonist, a young transfer student named Luna, her pet robot, and six of her classmates to be thrown through a gravity storm and crash land on a seemingly uninhabited planet. There, with Luna as their leader, the robot cat Chako, the lone wolf Kaoru, the spoiled rich boy Howard, the shy Sharla, the obedient Bell, the prideful musician Menori and the young genius Shingo must fight for their survival. But is the planet really uninhabited, or is there someone or something out there, waiting in the shadows? (Source: Wikipedia)

The everyday lives of the Minami sisters continue. Chiaki, the youngest, continues to call people idiots while worshipping her eldest sister. Kana, the middle, still can't figure out that Fujioka's feelings for her are a crush, not a grudge. Haruka, the eldest, still unknowingly avoids Hosaka's advances to invite her to the volleyball team, and after a long day of excitement, the sisters enjoy sitting at the table at their home. (Source: ANN)

The Minami residence is home to three sisters: the strict and diligent eldest sister Haruka; air-headed and lively Kana; and the youngest, Chiaki, whose sharp tongue spares no one. Living without adult supervision, the sisters share the workload of cooking and laundry, as well as the occasional romantic adventure. From combating chronic laziness to hanging out with friends, there is never a boring day in the Minami household. [Written by MAL Rewrite]

The spring term is beginning for the students at Lillian Girls' Academy. Friends are reunited, but for the Yamayuri Council, it's a bittersweet time. Yoko, Eriko, and Sei are busy preparing to depart Lillian while Sachiko, Rei, and Shimako are doing their best to ensure that their dear sisters receive a memorable commencement. Sei's departure will leave a sizable hole in the White Roses, and filling it won't be easy. But is there anyone who could appeal to Shimako enough to become the next Rosa Gigantea en bouton? (Source: RightStuf)