Even though they are Inner Sect Disciples of the Celestial Secret Mansion, as Golden Core Loose Cultivators from a loose background, which of them isn't ruthless, with who knows how many hidden cards up their sleeves.
If we act rashly, we may not end up well.
Honestly, a truly foolproof plan would be to have a Nascent Soul Cultivator take action; that would be truly fail-safe.
After all, this guy's father is a Nascent Soul Cultivator, so inviting a Nascent Soul to act wouldn't be too big of a problem.
"I originally wanted to invite my father to take action, but my father has other matters to attend to and cannot come to the Ten Thousand Talisman City for now. If I invite another Nascent Soul, I won't be at ease."
"So after thinking it over, I still feel it's better to take action personally."
"It's just a mere Golden Core Loose Cultivator, with the three of us, there shouldn't be much of a problem."
