Upon hearing Feng Yin's request initially, He Bibiqu was somewhat conflicted.
However, to secure this troublesome fellow, it was worth the effort.
These Demon Beasts' Spiritual Pearls can only possibly be produced by beasts of fifth-grade and above, and obtaining an intact Spiritual Pearl was quite difficult.
Because most of the beasts of fifth grade and above already have self-destructive abilities. They may not directly explode like a bomb, but exploding their own inner elixirs and Spiritual Pearl would be no problem.
Many Demon Beasts, when facing desperate situations, explode all the things that they can to transform into energy for battle. Even if they die in the end, they only leave behind a scarred body for their enemies.
You may eat my flesh, yes, but you can't have my inner elixir and Spiritual Pearl.
Demon Beasts, too, possess wisdom.