Aruhi Sorakara Totsuzen ni
From Up Above·ある日空から突然に。
Yuuto is a typical high school student until he is struck by lightning, after which a mysterious figure named Yadzuchi begins to follow him. Yadzuchi reveals themselves to be a ghost possessing spiritual abilities and claims that Yuuto is the reincarnation of Princess Aki, who lived a thousand years ago. Determined to help Yuuto regain his lost identity, Yadzuchi refuses to stop pursuing him until he remembers his true self.