Fumiya Tomozaki is Japan's best player in the online game Attack Families, commonly known as Tackfam. Despite holding such a revered title, a lack of social skills and amiability causes him to fall short in his everyday high school life. Failing to have any friends, he blames the convoluted mechanics and unfair rules of life, forcing him to give up and proclaim himself a bottom-tier character in this game. After a fateful meeting with another top-tier Tackfam player, Fumiya is shocked to discover the player's true identity—Aoi Hinami, a popular, smart, and sociable classmate who is the complete opposite of himself. Aoi, surprised at how inept Fumiya is at everything besides Tackfam, decides to assist him in succeeding in what she calls the greatest game of them all. Through the gruesome ordeals of social interactions and relationships, Fumiya begins to advance tiers in the glorious game of life.

Included with the third and fourth volumes of the Blu-ray/DVD volumes.

In an alternate history, following World War II, civil unrest and terrorism run rampant in a devastated Japan under foreign occupation. During a botched interception of underground munitions being transferred by a terrorist organization, Constable Kazuki Fuse, a soldier in an elite counter-terrorism unit, witnesses the true terror of human nature. He fails to prevent a teenage girl from carrying out a desperate suicide bombing that subsequently causes immense destruction to Tokyo. With mental scars and his competence under question, Fuse is sent back to the military academy for re-evaluation. Unbeknownst to him, he will soon be caught up in a web of government conspiracies that have the power to determine the future of all of Japan. As Fuse treads the fine line between human and beast, he ultimately discovers to which side he truly belongs.

High schooler Tomari Hinowa is called to the principal's office one day to hear some shocking news: he's getting married! A mysterious fluffy creature called Kanenogi has chosen him as their wife, and despite Tomari's initial misgivings, he decides to accept. What follows are a series of delightful tales from this new couple's monstrous married life.