Blu-ray/DVD Volume 1

"Isekai Ojisan Vol.1 Blu-ray/DVD" is the 1st volume of Disc for the Anime adaption of the Manga Series written by "Hotondoshindeiru".

Contents

 * Number of Episodes Included: 1~4 episodes
 * Limited First Edition Benefits
 * Newly Designed Case Cover drawn by Author "Hotondoshindeiru".
 * Newly Designed Digipak​ drawn by Anime Character Designer "Kazuhiro Ota".
 * Special Booklet with original Manga drawn by Author "Hotondoshindeiru".
 * Normal Benefits
 * Audio Commentary​
 * Episode 1 - Takehito Koyasu (Uncle), Jun Fukuyama (Takafumi), Haruka Tomatsu (Elf)
 * Episode 2 - Takehito Koyasu (Uncle), Jun Fukuyama (Takafumi), Mikako Komatsu (Fujimiya)
 * Non-credit OP&ED
 * Web Trailer (Episodes 2-4)
 * Special Program "Isekai Ojisan" Channel - Part 1
 * Performance - Takehito Koyasu (Uncle), Jun Fukuyama (Takafumi) ※Re-edited Special Program broadcast on AT-X on June 29, 2022.

Episodes

 * Episode 1 : I'm Finally Back From the Fantasy World of Granbahamal After 17 Long Years! (Dai Ichi-wa : Isekai Guranbahamaru ni Jūnana-nen Ita ga Yōyaku Kaettekita, zo)
 * Episode 2 : "Guardian Heroes" Shoulda Been Number One! (Dai Ni-wa : Ichi-i "Gādian Hīrōzu" Darō!)
 * Episode 3 : I'm Your Un—...Aunt, Dear (Dai San-wa : Oji ga Iru Nara Oba mo Iru Mono desu, wa)
 * Episode 4 : You Helped Me Through Tough Times (Dai Yon-wa : Tsurai Naka Omae ga Ite, Sasaete Kurete Yokatta)