Zettai Shoujo Seiiki Amnesian

From Cidsa: A spaceship lands on a bathhouse which belongs to Kazuto's family. Inside is Princess Warukure (Valkyrie) who gives part of her soul to Kazuto to save him from death (caused by her crash). Since she only has half of her soul, she turns into

Two girls, Kurusugawa Himeko and Himemiya Chikane, who have a close friendship that is secret from their classmates, are suddenly confronted with their fate to be the Priestesses of the Sun and the Moon. When an ominous lunar eclipse occurs on their share

It was her 16th birthday when Kurusu's classmate, Ogami, confessed to her. She’s delighted, but also feels very uncomfortable in relation to her friend Kiraha, whom she knows has a soft spot for this guy. But Kurusu doesn’t have any time to rejoice, because mysterious evil creatures suddenly appear and attack her!! Kurusu must face her destiny along with Ogami, whose role is to protect her. However, they can't tell Kiraha about the situation.

It was her 16th birthday when Kurusu's classmate, Ogami, confessed to her. She’s delighted, but also feels very uncomfortable in relation to her friend Kiraha, whom she knows has a soft spot for this guy. But Kurusu doesn’t have any time to rejoice, because mysterious evil creatures suddenly appear and attack her!! Kurusu must face her destiny along with Ogami, whose role is to protect her. However, they can't tell Kiraha about the situation.

From Cidsa: A spaceship lands on a bathhouse which belongs to Kazuto's family. Inside is Princess Warukure (Valkyrie) who gives part of her soul to Kazuto to save him from death (caused by her crash). Since she only has half of her soul, she turns into her child self. Now Kazuto and company must figure out how to fix the bathhouse and change Warukure back to normal.