A sinister game begins when a group of classmates reunites at their high school reunion, only to uncover a time capsule containing a defaced graduation album—and soon, their peers start dying mysteriously. As two former classmates race to unravel the truth behind the deaths, their own hidden secrets threaten to expose a web of lies, turning every classmate into a suspect in a nonstop suspense-driven mystery: who is the true culprit?

With only a year left to live, 17-year-old Akito finds new meaning in life by bringing joy to a terminally ill girl who has just six months remaining.

Professor Shiro Sakaki, a butterfly researcher, confesses to turning six young boys, including his own son Itaru, into "human specimens."

A brilliant chocolatier who's afraid of making eye contact meets an heir who can't touch others — but somehow, they're immune to each other.

The cynical butler, Sora Otosumi lives alone in a mansion with the innocent and carefree young lady, Yuna Mizuki. The two lead elegant lives, but they harbor a secret. Otosumi transforms into Kamen Rider MY-TH to fight mysterious monsters known as Fukashigi, and effortlessly defeats these creatures like a mouse. Around the same time, the Zyunishi Doumei (The Twelve Animal Signs Alliance), who also fight the Fukashigi, awaken from their 100-year slumber. Their leader is none other than a cat?! The alliance has begun to realize that their prey is being stolen. The battle between mouse and cat begins now!

Baku Yorozu/Kamen Rider ZEZTZ is accused of terrorism by the National Public Safety Commission. Convinced of his innocence, Kensei Odaka/Kamen Rider NOX pursues the true culprit, and finally tracks down the mastermind behind it all, National Public Safety Commission Chairman, Shuma Kumon/Kamen Rider Mugen.

Yatora is the perfect high school student, with good grades and lots of friends. It's an effortless performance, and, ultimately… a dull one. But he wanders into the art room one day, and a lone painting captures his eye, awakening him to a kind of beauty he never knew. Compelled and consumed, he dives in headfirst—and he's about to learn how savage and unforgiving art can be!

A commoner inherits lordship of debt-ridden Tanjousan Bun. Officials inform him of new role and substantial debts. He learns he is son of retired Daimyo when position becomes vacant.

A high school with poor academic performance has various problematic students who cannot receive proper education due to abuse or poverty. The hot-blooded teachers here take the role of gathering these students and help them to get back on their feet.