I'll consider it.

[It's not exactly a lie. But he's already made up his mind on the matter, unfortunately.]

Now, why don't you tell me how long you've been here, and why you've decided to go along with this plan.

[Jaeha does trust Kija, but his younger brother does seem rather naive to him, and if someone's duped and manipulated the White Dragon, they'll face the Green Dragon's wrath.]