An ancient legend tells of a magical Powerstone that granted its owner any wish desired. Adventurers from all over the globe clash as they seek this mystical gem. Based upon the Dreamcast game, POWERSTONE tries to entertain us with the story behind the game's premise. The plot begins with our hero, Fokker, training to be a fighter like his idol, Vargas. (Source: AniDB)

Shiroi Koibito-tachi Kyousuke Kasuga and his friends are staying at his grandparent's house over winter break on a skiing trip. Everyone is excited until they hear about a curse that spells doom for couples who go down the mountain together. With a net of relationships and crushes on the line, the group's plans are suddenly upended. Hawaiian Suspense Kyousuke and Madoka Ayukawa's trip to Hawaii takes an abrupt turn for the worse when Hikaru Hiyama gets kidnapped! Kyousuke has to find a way to rescue her without revealing his paranormal powers to Madoka. Wagahai wa Neko de Attari Osakana de Attari While studying for exams, Kyousuke wishes that he could switch places with his pet cat or fish so he could have an easier life. But when his grandfather arrives with a magic rope that can be used to swap bodies, Kyousuke finds out he might have gotten himself in too deep. Hurricane! Henshin Shoujo Akane When Kyousuke's cousin, Akane, comes to visit, she stirs up antics with her ability to cast illusions. Things get even crazier when Akane falls for Madoka and becomes Kyousuke's rival in love. Koi no Stage=Heart on Fire! As Kyousuke helps to prepare for a local music festival, a popular idol crashes into him and they switch bodies! Now, Kyousuke must get his body back and prevent his secret from getting out before the show begins. Omoi Gakenai Situation Kyousuke has a foreboding dream where Akane attempts to seduce him. Disgusted after having inappropriate thoughts about his cousin, Kyousuke is shocked when she actually asks him to pose as her boyfriend in front of her friends. Rouge no Dengon Madoka's father is in Japan for a performance, and she is excited for the rare opportunity to see him. When she sees her father with a strange woman, however, her emotions are thrown into disarray.

Kuroe Akaishi is an introverted, quiet, and seemingly normal high school girl. Though accustomed to being alone, her dreary days begin to change when she meets Arata Minami, a bright and handsome boy in her class. Despite his popular status, he is kind enough to reach out to an outcast like her; soon, Kuroe finds her heart begins to pound around him. It keeps pounding and pounding and pounding until Kuroe transforms into a monstrous kaijuu! She has a certain affliction: as her embarrassment grows, so do the monstrous appendages from her body; and when it hits a peak, she unleashes the full extent of her transformation. At the same time, beauty meets the kaijuu, and Japan faces off against the looming threat of the mysterious monster. Can Minami accept her feelings, or will he too be frightened off by her colossal form? Depending on his decision, the world may experience the full devastation of a girl's heart-pumping, youthful love.

In the near future the world's climate shifted creating in the Western Pacific a perpetual super cyclone: the Grand Roar that altered the earth, flooding most countries. Shipping and navigation became important to nations and following the appearance of ocean pirates, necessisated companies to hire escort cruisers to safeguard their investments. Hyousuke Nagimiya is a system engineer that was comissioned to upgrade the Pascal Magi manned by an entire crew of women with its captain, Misaki Nanaha. Together the crew strives to prove themselves to their detractors that they are no mere 'Alice Brand'. Yet as they go about their mission a larger global conspiracy seems to be working behind the scenes to take advantage of this new world order. (Source: ANN)