One morning, students find their homeroom teacher Tokuyama Daigoro’s body on the floor of the classroom. A strange school life begins as the students work hard to hide the presence of their teacher's corpse in their classroom. Other teachers from the Academy, their homeroom teacher's wife, his mistress, police, and reporters... One-by-one they visit the classroom and the students face the risk of being discovered. Is it possible to continue to hide it?! And who was it who killed him?!

21 female high school students are locked in a classroom and their footage is shown all over the world in real time. The only way to escape is to receive many "likes" from the audience.

Soko Magattara, Sakurazaka? is a Japanese late night variety show starring Japanese idol group Sakurazaka46. It is hosted by Yū Sawabe and Teruyuki Tsuchida and airs every Sunday at 12:35 AM JST on TV Tokyo.

Keyakitte, Kakenai? is a Keyakizaka46 variety TV show featuring their Kanji and Hiragana members. It is hosted by Tsuchida Teruyuki and Sawabe Yuu.

26-year-old car mechanic Hibiki Mamiya lives with his high school sweetheart of the same age, Kurumi Ogasawara. Life together feels so natural and filled with the warmth of each other's love. It was a happiness they expected would last a lifetime. Hibiki is secretly preparing his proposal to Kurumi when misfortune strikes. A tunnel collapses, trapping him for four days. Barely making it out alive, he discovers a world completely changed. There is absolutely no one around, communication signals are dead, the transportation network is a wreck, and the only information available is the emergency evacuation order being repeated on the radio. Everywhere Hibiki goes, he sees bloodstains. Just what happened to this town?!

Yokoyama Yoko is the representative of the matchmaking agency specializing in nurses, "Nurse no Tomo." A former nurse herself, Yoko, who has experienced many years of marriage hunting, is known as a charismatic figure who, with her straightforward manner of speaking, guides those lost in the world of marriage hunting to success one after another.