故事发生在名为三嶋崎的海边小镇之上，私立美滨学园中，来了一位名叫风见雄二（樱井孝宏 配音）的转学生，然而，让雄二没有想到的是，在学园之中只有五名学生，并且全部都是女性，就这样，在小小的高墙之中，雄二的新生活就此展开。
拥有美丽外表但性格孤僻的大小姐榊由美子（田中凉子 配 音）、个性开朗活泼，稍稍有些男孩子气的周防天音（田口宏子 配音）、倔强傲娇运气极差的松岛满（水桥香织 配音）、外表天真可爱实则有着悲惨过去的入巢莳菜（民安智惠 配音）和尽忠职守的天然呆小岭幸（清水爱 配音），五个表面看来天真烂漫的女孩，各自却有着灰暗的过去，雄二的到来能否扫清她们心中的阴霾？

Yuuji makes the unexpected decision to pursue promotion within the institution he works for. He meets with JB to discuss the documents he submitted for review as a part of the promotion process, documents pertaining to his own past.

Mihama Academy—on the surface, a closed learning environment established to nurture students who find themselves at odds with the world around them; in actuality, an orchard-cum-prison built to preserve fruit that has fallen too far from its tree. Yet with the arrival of the institute's first male student, the nearly preposterously opaque Kazami Yuuji, the students at Mihama begin to fall out of step with their predetermined rhythms. Will Yuuji prove to be the element the girls around him needed to take hold of their lives once more, or will the weight of their pasts prove too steep a wall to overcome?

Tokyo Pig is about a young boy and the adventures he has with his magic diary where anything he draws will come to life. In the first episode, "When Pigs Fly," he draws hundreds of flying pigs. As he experiences his first drawing coming to life, he tries to erase them all before his parents catch him. In his haste however, he misses one pig which becomes his pet, Sunny Pig.

Takashi and four of his classmates, fourth-grade students, cannot succeed in doing a back pullover around a horizontal bar. Their gym teacher warns them: they have one week to succeed; if they resign now, then, tomorrow, facing life difficulties, they will always run away and become bums.

The relationship between the siblings Aki and Sora continues to grow, even with the family constantly around. Nami on the other hand has strong feelings for her friend Kana, even though Kana actually likes Sora. This turmoil makes Sora question if he can or should continue the incestuous relation with his older sister Aki.

Kasugano Haruka and his sister Sora have lost both their parents in an accident, and with them all their support. They decide to move out of the city to the rural town where they once spent summers with their late grandfather. At first everything seems familiar and peaceful, but changes come as Haruka starts to remember things from his youth.

The Streets here are continually enshrouded in white mist. Steam rises from everywhere, obscuring the streets and buildings. Because coal was the only fuel available, this city developed an incredibly advanced steam technology. Unfortunately, evil-doers take advantage of this white fog to commit countless crimes and continually baffle the police. At night, the white mist shrouds the darkness, intimidating everyone. People Call this city enveloped in mist, STEAM CITY.