There was already an understanding between the two.
Su Lun knew exactly what Chientiao was thinking, and he asked directly, "You're not thinking of going to the Netherworld, are you?"
This was an extremely dangerous idea.
Because while others might just fantasize about it, they actually had a way to go there.
Initially, when Su Lun and Chientiao went on an adventure in Mountain Hermit Country, they found an adventure novel left by the great author Fujiwara Hayato.
That guy had literally gone to the legendary "Netherworld" and even came back alive.
Moreover, he documented how he went there and his adventurous experiences in the Netherworld in that book, "Deadly Novel · Netherworld."
That novel was now in Su Lun's hands.
Not just the novel, he also had a ticket for the Ghost Train.
That was a myth in Mountain Hermit Country, where the souls of the deceased supposedly traveled to the Netherworld on a Ghost Train.
It was originally just a legend.