Akiba-chan focuses on the daily life of Akiba-chan and four fellow TV and game fans in the Maison de Akiba apartments. Buildup Entertainment (Gundam: Mission To The Rise, Macross Plus) produced the computer animation with director Junya Kabe (Specter, D) and character designer Poyoyon Rock (Nurse Witch Komugi, Starship Girl Yamamoto Yohko).

Cheng Ke has lost everything. Coming from a privileged background, he now has to search through trash to find his missing possessions. When one of his frustrated outbursts results in him being punched in the face, Cheng Ke finds himself unfortunately acquainted with terrifying gang leader Jiang Yuduo. Circumstances lead to Cheng Ke becoming a tenant at a new apartment—which just so happens to be rented out by Jiang Yuduo. Cheng Ke's inability to complete even the most menial tasks forces him to overly depend on his landlord, and as a result, the two form an indescribable bond. However, there are darker forces at play in the lives of both Cheng Ke and Jiang Yuduo. The two men are haunted by the pasts they left behind, and meanwhile, danger lurks around every corner. With mysterious figures following their every move, gang wars raging in the streets they walk on, and enemies itching to bring them down, Cheng Ke and Jiang Yuduo must always have each other's back.

An evil monkey, Specter, has escaped a circus, using a mind-controlling device which allows him to become smarter and have access to controlling the monkeys. Kakeru is called over by a professor in order to capture all the monkeys, including the one's who's controlling them: Specter.

​On the island of Regalo, a group of supernaturally powered mafia-like protectors called the Arcana Famiglia safeguard the people from any who would harm them. The members of their organization, having made contracts with tarot cards, each possess different abilities, such as overwhelming strength, invisibility, or the power to see into someone's heart. Mondo, their leader and the "Papa" of their family, announces at his birthday party that he will be retiring soon. He plans to hold the Arcana Duello, a competition that, if won, will grant the winner the title of Papa and any wish they desire. But there is more at stake than just a title: Mondo also decides that the winner will marry his daughter, Felicità. Enraged by this, the strong-willed Felicità decides to enter the competition herself, in order to make her own way in the world. As Felicità battles for her freedom, her competitors battle for her heart.