A spin-off of the Inazuma Eleven soccer franchise, Outer Code is a set of six short ONA episodes set in an alternate universe that changes several basic ideas from the original story. The shorts were shown during the Inazuma Walker livestream program and spotlight particular characters in the period before Inazuma Eleven: Ares no Tenbin begins. The first episode centers on the Fubuki brothers, and the second turns to the Ohisama En. Fans of the franchise's soccer action get a brief look at familiar faces in a reworked setting.