A Yuki Yuna Is a Hero fanfiction, a hymn to courage and love.
In the year 2015, the gods unleash their wrath. Earthquakes, tsunamis, floods, and storms wreak havoc on human civilization. The emergence of VERTEX makes matters worse: terrifying monsters slaughter without mercy, casting humanity into the depths of despair.
At this critical moment, a group of girls with extraordinary powers steps forward. These heroes wield the power of the gods to protect humanity and fight the monsters. But what changes will a butterfly from another world bring to this one?
