The original source material is often cited by fans as being more comprehensive than the anime, featuring more characters and a surprising ending.
: Characters effortlessly outsmart adults, teachers, and rivals, satisfying the reader's desire for a clever underdog story. Common Story Archetypes and Plots
Seinen, Drama, Slice of Life, Supernatural (Time Leap)
Arata has to pretend to be a "brat" (Gaki) to fit in, leading to internal monologues about the exhaustion of acting like a child when you have the soul of a cynical 30-year-old. Act III: The Turning Point (Climax)
But Gaki ni Modotte Yarinaoshi imagines a different physics.
An adaptation was released around 2019, consisting of two episodes. While the first episode is generally well-received by its target audience, some reviewers suggest the second episode suffers from lower production quality. Reception and Themes Gaki ni Modotte Yarinaoshi!!! Characters - aniSearch.com