Seikaisuru Kado

Sci-Fi Seinen

Koujirou Shindou. Cabinet Office Director-General for Policy Planning, is at Haneda Airport for a business trip. While the plane is on the runway, a giant structure suddenly appears out of thin air. The plane carrying Shindou and 251 passengers is taken undamaged inside the giant structure. After everyone disembarks, a man who looks like an ordinary human being shows up. He assures those from the plane that they're not in any danger. Shindou asks him to identify himself and explain the situation. Then the outside of the structure is displayed on a large screen, and at the same time, every passenger's cell phone starts ringing all at once. On each cell phone screen is a message from this man, to every one of Japan's citizens: "I, Yaha-kui zaShunina, hereby notify you that I am going to intervene in Japan's internal affairs." What is this young man's goal? And will Shindou manage to become an intermediary between Japan and the Anisotorons...? (Source: ANN)

Seikaisuru Kado: Aoi Haru to Railgun

Sci-Fi

The manga takes place immediately after the end of episode five of the anime series, and tells another story not told in the anime. The manga follows high school students whose lives are completely changed after the arrival of the Kado cube and the unlimited energy source Wam. (Source: ANN)

Ano Kado wo Magatta Tokoro

Romance School Yaoi

After an accident, Kishimoto was forced to give up his dream of becoming a pianist. After his lover dumped him, Kiriya found himself spiraling into depression. The two bonded over their unhappiness, and before they knew it they'd developed a physical relationship. But could this diversion go in an unexpected direction? (Source: 801 Media)