The insect’s unyielding spirit, cruelty, loyalty, and willingness to die made Su Ming understand that he could not turn that insect into his own pet unless he wasted a long amount of time, perhaps years or even longer. He would not be able to use Han Mountain Bell in that time, only keeping the creature trapped within it to break down its divine sense until he could eventually turn it into his own pet.
However, Su Ming did not have the time for this, neither could he waste so much effort for it.
Yet if he killed it just like that, Su Ming found it to be quite a waste. The insect’s speed and piercing power left a deep impression on him. If he could make it his own, then without a doubt, it would become an incredibly powerful weapon in his hands.