Jin Zhaoyan indeed felt gratitude towards Fang Mu and wanted to build a good relationship with him.
However, Jin Zhaoyan's appraisal of the Infinite Silver Silkworm was not the slightest bit false.
The Infinite Silver Silkworm was indeed superior to the Spirit Mayfly and Jing Ming Sea Mother, as Jin Zhaoyan had said.
Contracting a Spirit Mayfly required the consumption of spiritual power almost equal to that of contracting ordinary Guardian Beasts.
Even if a Beast Master obtained advantages of a lower rank, they would have to contract one fewer Guardian Beast.
However, the Silkworm Type Royal Beast Fang Mu had presented only needed about one-tenth of the spiritual power required for a Spirit Mayfly.
The consumption of spiritual power was negligible and would not delay a Beast Master's insights into mystical patterns.
It was essentially giving a Beast Master a free increase of one Star Level.