Hayato was a warrior that had been formerly summoned to another world. He had fought magical beasts along with comrades with the same circumstances and had been returned home after 2 years. When his former started to seek revenge, what Hayato felt was not fear but delight. Because to him, it was nothing more than a chance to be transported from his boring everyday life back to the abnormal lifestyle of the other world.

Yoshida, who worked for a black company, died in an accident. Due to a mistake during reincarnation work, he couldn’t be reincarnated in his original world. God suggested him to reincarnate in a different world with a mischievous angel, who unwillingly accompanied him, as his support; and the two were born into the world of sword and magic as twin brother and sister. A few years later, Yoshida took magic lessons from his angel sister and began his special training so that he could lead a fulfilling life. But the younger sister, who changed her mind to enjoying this world, was aiming for a parasitic life where she could live comfortably, so she continued training her brother so that she could use him well. Being an adventurer, or the third generation of inn owners, Yoshida’s second life with a younger sister, who doesn’t wanna work, begins. Source: NU

An anthology of Kagerou Daze future-themed stories by various authors.

The series sees mathematician Gakuto Mikoshiba, from Kaminaga's other series Kakuritsu Sōsa-ka (Probability Investigator), battle wits with Yakumo Saito from the Psychic Detective Yakumo series. (Source: Anime News Network)