Quick answer
Steps gain Power; the official description says a new Anime every 10 levels follows the player and makes each step stronger, while exact rates remain unverified.
Start here when this is the exact player task you searched for. The sections below turn the question into steps, checks, and next pages.
For +1 Anime per Step Power, use the quick answer first, then check whether the topic affects a code reward, event, item, unit, map, build, value, or upgrade path.
Explain the official Power/step/level/Anime loop, separate the every-10-level wording from unverified rates, and send numeric scenarios to the calculator.