Fushigi Yûgi: The Mysterious Play S01 E44 Moment of Battle

The dead Miboshi has possessed Chiriko, Miaka is captured and trapped by Miboshi and no one can save them. Subaru, the Byakko warrior uses her power on Tokaki and herself to be in the body they were 90 years ago. They saved Miaka but a tragic fate ends with Chiriko.