There are six OVA episodes, the OVA-1 or first episode entitled, "Paladiness of Mirage I" was aired on April 8, 2020 (2020-04-08), and the OVA2  or the second episode was entitled "Paladiness of Mirage II", which was aired on the same date as the episode one.
"Paladiness of Mirage I"
Transcription: "Kagero no hijiri kishi-hen I" (Japanese: I) April 8, 2020 (2020-04-08) "Paladiness of Mirage II"
Transcription: "Kagero no hijiri kishi-hen II" (Japanese: II) April 8, 2020 (2020-04-08) OVA3 OVA4 OVA5 OVA6 
