SAKAMOTO DAYS is a oNA (web) anime that premiered in winter 2025, produced by TMS Entertainment.

About the production: the story comes from a manga, there are 11 episodes of about 24 minutes and its current status is "finished".

Its main genres are action and comedy, with themes such as Assassins, Urban, Found Family and Konbini.

On AniList, SAKAMOTO DAYS has an average score of 76%, a very good score, and appears on 228,042 users' lists.

The franchise continues in or follows from: SAKAMOTO DAYS Part 2.

When Sakamoto meets Aoi, the convenience store clerk, it’s love at first sight — and just like that, he retires. Sakamoto gets married, has a daughter, opens a mom-and-pop store in a quiet town, and completely transforms … into a plus-size man. To ensure a peaceful life with his beloved family, the legendary ex–hit man bands together with comrades to face off against the looming threat of assassins. (Source: Netflix TUDUM) Note: The series streamed a week in advance on Netflix Japan starting with episode 2 released alongside episode 1.

Official synopsis from AniList.