Masayuki Kunioka, who had been living in Tokyo for a while, was in a hurry. To his surprise, his mother found out his occupation because of his previous "Kunioka" work. Kunioka originally worked as a company employee after graduating from high school, but resigned because he did not fit in. He worked as a hitman without telling his mother about it. However, his mother found out about it. Kunioka came to Osaka to explain and greet his mother at home, but his colleague Manaka and cameraman HANAMOTO also came along to join him for an Osaka travel location show. Kenta Osaka joins him on what is supposed to be a fun trip, but Saito, the Naniwa Assassin, catches his eye. Will Kunioka be able to enjoy his trip to Osaka to the end, and will he be able to convince his mother of his profession? The first installment of the Kunioka Gaiden series! Translated with www.DeepL.com/Translator (free version)