New Anime airs this January called "Sakamoto Days" has been released

The story of Taro Sakamoto, the ultimate assassin who is admired by other hit men and feared by villains, is told in Yuto Suzuki's popular manga.

He becomes infatuated and agitated one day, consumed by thoughts of getting married, retiring, and becoming a father. However, he still possesses superhuman strength and skill, and in dire circumstances, he sheds his excess weight and doubles his previous power.

The anime is about chaos breaking out in Sakamoto and his friends' daily (and unusual) lives while protecting his family and their grocery store. Sakamoto has been quite rusty since the day he retired, but when it comes to his family and friends, he'll make sure to get up in shape just to protect them