Haruaki Abe lands his dream teaching job, but Hyakki Academy's students are supernatural beings. Can this shy teacher handle his otherworldly class?

Reach the top, and everything will be yours. At the top of the tower exists everything in this world, and all of it can be yours.

A schoolboy develops a crush on his short-sighted schoolgirl classmate. Will he get close enough for her to see his feelings?

For a high school project, an introverted boy and an outgoing "gyaru" have to pretend to be married — and neither of them are happy about it.

Kimizuka Kimihiko is a crisis-magnet. From getting caught up in a crime scene to accidentally witnessing a drug deal, trouble seems to find him around every corner. So it is no surprise when his rather mundane flight suddenly enters a state of emergency with a dire need of a detective onboard. Unfortunately, his attempt at avoiding trouble is foiled by a beautiful girl with silver hair who goes by the codename Siesta. Declaring herself a detective, she unceremoniously drags Kimizuka into the case as her assistant. That incident spelled the beginning of an adventure around the globe that went beyond his wildest imagination. Putting their lives on the line, the two took down criminal organizations, prevented disasters, and saved thousands. But the curtain closed to their epic journey with Siesta's untimely death three years later. Resolving to live an ordinary high school life this time, Kimizuka spends a year maintaining a low profile. However, as fate would have it, a girl with an uncanny resemblance to Siesta comes crashing into his life, threatening to throw his peaceful days into disarray.

Aya moves and starts to attend an all-girls high school in Kyoto. Her first friend is her reserved classmate Miki. After school one day, the committee chairwoman Midori takes them both to an analogue game specialty shop called "Saikoro Club" (Dice Club). There, they start playing a German board game without thinking. Thus begins Aya and Miki's search for fun through the world of analogue games.