Isekai Quartet Relay PV

Isekai Quartet Relay PV is aseries of Promotional Videos aired on TV to promote the series.

Overview
There are four videos total, each one based on a different universe featured in the series. The videos take place before the eventes of the series, containing original animation not reused for the series.

Episodes
KonoSuba version

- Kazuma and Aqua are in a cave looking for treasure, Darkness and Megumin wait outside by a campfire since Megumins explosion magic would bary them alive. - Video ends refferencing Youjo Senki.

Youjo Senki version

- Tanya Degurechaff is asked to test a new device that should increase the function of Orb

- Video ends refferencing Overlord

Overlord version

- Aura and Mare discover the button, and wonder what it does.

- Video ends refferencing Re:Zero

Re:Zero version

- Emilia and Puck ask Subaru about a button that Rem and Ram found earlier that morning. Subaru wanrs them it could be a trap, refferencing a well known gag in Japan performed by comedian Ryuhei Ueshima

- Video ends refferencing KonoSuba