It also speaks to the kōkai (regret) culture. Unlike guilt (feeling bad for doing something wrong), regret is the pain of not doing something. The trope offers a sandbox to correct the "paths not taken"—the confession never made to the childhood crush, the sport quitter’s decision, the dream abandoned for a "safe" job.
. The story follows a classic "second chance" or "time slip" trope, but with a darker, revenge-driven twist. Core Premise & Plot The protagonist, referred to as gaki ni modotte yarinaoshi