Ant Royal Jelly

(TL: https://en.wikipedia.org/wiki/Royal_jelly )

Sheyan was ecstatic reading the notifications he just received. He immediately inquired about the details of the completion rate for this mission. The response was:

[ Silver Mission Series hidden branch, Chapter 2: Injection will not complete by itself. When the completion rate of the task reaches 100%, you may perform the necessary step to complete the mission. But you can also choose not to complete it, and instead continue to provide various "nutrients" to the liquid metal enhanced life-form in order to achieve additional completion rate. The higher the additional completion rate, the greater the probability of getting a "Level Max" evaluation. ]

This was similar to work on Earth. An employee would get the basic wage only after they completed the basic amount of work they had to perform. After that, the extra production would be paid with bonuses.