Arifureta Shokugyou de Sekai Saikyou: Maboroshi no Bouken to Kiseki no Kaigou
English title: Arifureta: Phantom Adventure and Miraculous Encounter
Japanese title: ありふれた職業で世界最強 「幻の冒険と奇跡の邂逅」
Type: OVA
Episodes: 1
Source: Light novel
Genres: Action, Adventure, Fantasy
Studios: asread., studio MOTHER
Producers: Overlap
Duration: 42 min
Rating: PG-13 - Teens 13 or older

After the capture, Hajime was worried about the farewell to Myuu that would occur when the trip resumed.
Hajime and his friends were talking about "The Seven Great Legends of Erisen" as a memory before they left for the trip, but all of them were missed.
However, in the final seventh adventure, he encounters a mysterious giant creature and is blown into the world of a devastated city!
Hajime, who started to search for the stray Myuu, fulfills a miraculous encounter there.

(Source: Official website)