"Sakura Squad, a native organization in Japan, is documented in the Yanhuang Soul records as an assassin organization, and almost all of its members are female. They primarily focus on stealth kills and assassinations. They are not active in the mainland of Huaxia, with records of appearances not exceeding ten times in the past twenty years."
This was the information Xiaofan received through Li Kuo on his way back.
Just a preliminary understanding, Xiaofan had already fully understood who was behind the Red Butterfly.
It's obviously not the Sakura Squad, but it's definitely someone who can command the Sakura Squad, and to simultaneously control so many large organizations, it's probably not a person, but a country.
Xiaofan finally understood why David didn't want to owe favors to the Red Butterfly when he attempted to assassinate his uncle; it was because he didn't want to owe Japan a favor.
