"Youl...hewp? (Your help?)" Ainsley looked at Finley with eyes full of suspicion. The girl couldn't believe Finley right away. If Finley could help her trigger Code-C bloodline without any risk of failing, why didn't he do that earlier?
Indeed, Finley could actually help Ainsley from the start. But that would make the baby spoiled, and she wouldn't improve her power. If he could, Finley wouldn't help Ainsley with a shortcut.
If not for Blaire's influence behind Ainsley's sorrow, he would never give this help as he needed to pay for the price.
In the end, Finley considered helping Ainsley since the rumour said that Lady Blair already tamed the sacred guardian in her place.
Of course, that should be a lie since Finley got insider information from the spies he planted there. Regardless of the rumour, Blair would soon tame one of the sacred guardians in her family.
That's why Ainsley had to do it faster before Blair.