Twin swords combined will definitely not be invincible.
But with dual cheap tricks, it's indeed possible to fool Cundi.
It was just that Ji Changsheng had never thought about doing it before.
And he remembered very clearly,
"Sister, you said before that you didn't think highly of Cundi, didn't you?"
Back then... When Buddha Tathagata was refining Cundi's severed hand, Li Changxi had said that strength was temporary and beauty was forever.
She couldn't accept having Cundi's flesh and blood on her, too ugly.
Li Changxi affirmed she still thought it was ugly now.
"I don't want Cundi's flesh and blood, I want his mana and enlightenment."
"You're quite picky, it's harder to get mana and enlightenment than flesh and blood."
"That's true."
If it were for flesh and blood, just beating Cundi to death would do.
But for mana and enlightenment, beating him to death might not suffice.
"It would be best if Cundi willingly gave me his mana and enlightenment."