While Saito died in 2021, the series has been continued by his production company, Saito Production, something that Saito had given his approval of before his death.
Takao Saito's Golgo 13, the longest-running manga of all time, stars the titular Golgo 13, a professional assassin who takes jobs of varying seriousness, no matter who he may cross, all with his signature M16 rifle. While Saito died in 2021, the series has been continued by his production company, Saito Production, something that Saito had given his approval of before his death.