Premieres January 11, 2025. The new PV is here. Check out the Crunchyroll article for more info. Synopsis from AniList:
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.
Crunchyroll messed up by not acquiring the rights to this. Sakamoto has all the tools to blow up like Spy family