Reservoir Chronicle: Tsubasa

Syaoran, a boy who wants to become an archeologist, and Sakura, a princess from the Clow Kingdom, are childhood friends with a close relationship. On a fateful night, Sakura lost all her memories as a result of a conspiracy to obtain her powers. In order to regain her memory, Syaoran seeks help from the witch, Yuuko. Yuuko tells Syaoran that he has to travel from one alternate reality to another to collect fragments of Sakura's memory. However, even if Sakura regains her memory, she will have no recollection of Syaoran. Travelling together with them is Kurogane, a warrior who was exiled from his country, and Fye, a magician who wants to escape from his King. With the help of a magical creature, Mokona, they set off on an exciting journey through time and space. Reservoir Chronicle: Tsubasa featuring Maaya Sakamoto and Sayaka Ohara has one or more episodes streaming with subscription on Crunchyroll (Via Prime Video). It's an anime and drama show with 57 episodes over 4 seasons. Reservoir Chronicle: Tsubasa is no longer running and has no plans to air new episodes or seasons. It has a better than average IMDb audience rating of 7.3 (1,326 votes).