Because most of Yokogawa Tsutomu's trusted subordinates had been devoured by the Box of Ultimate Bliss, Longfei quickly took control of Kusagakure with Grass Flower and became Kusagakure's interim leader.
After becoming leader, Longfei immediately explained the events within the village.
The former leader, Yokogawa Tsutomu, had embarked on an evil path and conducted forbidden research. In the end, something went wrong with his experiment, turning him into an inhuman monster. He slaughtered many Grass ninja, but with the help of righteous Konoha ninja, they defeated the monstrous Yokogawa Tsutomu and protected Kusagakure.
To thank Konoha for its help, Kusagakure would next sign a friendship treaty with Konoha and become its ally.
At last, the people of Kusagakure learned who the hero that had slain the monster was. It was none other than the famed Blazing Sun Mu Yue of the ninja world.
Thinking of how Kusagakure was about to befriend a top-tier Ninja Village like Konoha, the villagers all felt that Kusagakure was flourishing.
Of course, a small number of people believed Longfei had colluded with outsiders to seize power, and that everything was part of their conspiracy.
Longfei generally locked up those baseless conspiracy theorists for a few days to help them clear their heads.
While Longfei handled Kusagakure's affairs, Mu Yue sent the intelligence from the completed mission back and prepared for the next step.
They certainly would not be the ones negotiating the specific terms of the treaty. Hiruzen Sarutobi would send a dedicated team when the time came.
But that did not mean Kusagakure, now Konoha's ally, did not need to help Konoha fight.
Kusagakure needed to order its ninja to turn on Iwagakure and help Konoha gain an advantage on the battlefield.
Compensation could be discussed later, but they had to help fight immediately.