*Note: Released at J.GARDEN 39.*

An bonus chapter included with the final volume of Getter Robo Āḥ. Dr. Hell discovers a biomechanical lifeform known as "Kedora" in the depths of Bardos Island, and realises that he can use it to fight Mazinger Z. The story of this chapter was loosely adapted into the sixteenth episode of Shin Mazinger Shougeki! Z-Hen.

A lonely girl lends her umbrella to a dog on a rainy day. The next day a boy comes to return the favour. Is this boy the dog from yesterday?

Koichi and B.T. are back again... This time, their retirement plans include a voyage to the stars! But how will they overcome the puzzle their old nemesis has left for them inside their spaceship...?

Sora Onodera discovers he can use magic one day when he accidentally turns his older brother Riku into a hedgehog. Sora learns that his parents and brother can also use magic, and that he acquired the transformation spell because he's experiencing his first love. Now the only way to put Riku back to normal is to acquire the magic to undo the transformation, which has the condition that he must first get the girl he likes to tell him she likes him back. (Source: Hachimitsu Scanlations)

Karen, who used to be known as the #1 bully at her school, was abandoned by a boy she loved. However, who would have thought an unexpected fate would happen to her! [Original Webtoon](https://www.webtoons.com/id/romance/blind-to-you/list?title_no=2111)

Special chapter first released in the *Ring ni Kakero Real* databook and then rereleased in the Oh! Super Jump magazine to conmemorate the release of the anime's second season.

*Note: Released at Comiket 82.*

Sano wanted to be close to Koga and thought her chance was lost when Koga died in a car accident. However, Koga's soul is not as distant from Sano as it may seem.

Takumi is super busy with work as always, but Tomohiro is equally as busy with his own work. The two schedules aren't meshing well together and it leaves Tomohiro feeling lethargic and frustrated. So Tomohiro decides he should just give up, but what is he giving up on? Their relationship? His new project? or maybe...something else?