Synopsis
Akira enjoys a tranquil existence with his mother, who manages a cafe, and his older sister, Haruka. Yet, the family conceals a secret: Haruka has inherited a power known as "Engine" from their father, which she keeps hidden from everyone. In contrast, Akira did not receive his father's ability, leaving him with a deep sense of inferiority. As these personal dynamics unfold, bizarre occurrences begin to emerge across the globe.
