Gaki Modotte -

He never did.

(often shortened to "Gaki Modotte") is a Japanese adult (hentai) manga and anime series that explores a dark twist on the popular "time-leap" or "do-over" subgenre. The title roughly translates to "Returning to My Childhood and Redoing It!!!". Plot and Synopsis gaki modotte

A man who carries deep-seated resentment into his past. His "do-over" is fueled by a desire for retribution rather than traditional self-improvement. He never did

If you are looking for a review, you are likely looking at the series, which is the franchise's magnum opus. gaki modotte

(often searched for as "Gaki no Tsukai: No Laughing Batsu Game" ) refers to the legendary annual New Year's specials of the Japanese variety show Downtown no Gaki no Tsukai ya Arahende!!