As a baby Jiro was delivered to his foster parents by a massive oni, who said he would return for Jiro in 15 years. When the time comes Jiro must contend with enemy oni, dark cultists, and their minions while attempting to protect both his parents and girlfriend from their depredations. Ultimately he must embark on a journey through the past, future, and other dimensions to embrace his destiny as Shuten Doji reborn.

As a baby Jiro was delivered to his foster parents by a massive oni, who said he would return for Jiro in 15 years. When the time comes Jiro must contend with enemy oni, dark cultists, and their minions while attempting to protect both his parents and girlfriend from their depredations. Ultimately he must embark on a journey through the past, future, and other dimensions to embrace his destiny as Shuten Doji reborn.

When she was little, Mira Kinohata met a boy named Ao at a campsite in town. While gazing at the starry sky together, Mira learns that there's a star with the same name as herself, but no star named Ao. The two then promised to one day explore asteroids together and find a star to name it after him. Several years later, Mira enrolls at the Hoshizaki high school and decides to join the astronomy club to fulfill her promise. However, she learns that the astronomy club will be merged with the geological research society to form the earth science club. Reluctantly, Mira goes to the club room and is reunited with Ao Manaka—the person she made the promise to explore asteroids with—and is shocked to learn that she is a girl!

Having failed 19 job interviews in one day, Juri Yukawa's dreams of moving out of her parents' home are utterly dashed. Stuck living with her working mother Nobuko, NEET brother Tsubasa, laid-off father Takafumi, and single-parent sister Sanae, the only hope for this family to raise a decent adult is her little nephew Makoto. However, this struggling family's life takes a turn for the worse when Makoto and Tsubasa are violently kidnapped by a mysterious organization and held for ransom. With only 30 minutes to deliver five million yen to the criminals, Juri's grandfather reveals a dangerously powerful secret to her and Takafumi. By offering blood to her grandfather's mystical stone, the three enter the world of "Stasis," a version of their world where time stops for everyone but the users. Having arrived at their destination, their rescue efforts go awry when they are assailed by a surprising group of people who are somehow able to move around within Stasis. While all hope seems lost, a monstrous giant known only as the Herald appears amidst the chaos, its intent and motivations as cryptic as the very nature of this timeless world.