The existence of contracts is varied and plentiful.
Having traversed many small worlds, Shi Yaoguang naturally learned quite a number of them.
She had Shi Yiqing write down the message she wanted to convey, which in reality was not true, and then used a power invisible to the naked eye of mortals to draw simple low-level runes on the sticky note.
Once the runes were drawn, having Shi Yiqing sign her name completed the contract of checks and balances.
The purpose of this contract was roughly equivalent to the Oath of the Inner Demon in the Cultivation World.
The Oath of the Inner Demon, as its name implies.
If one can't overcome their inner qualms, it will become an inner demon.
Shi Yiqing was unaware that she had stepped into such a deep pit.
In her opinion, the reason Shi Yaoguang asked her to write this was most likely to show it to Quan Sicheng or her parents from the Shi Family.
She was fully confident about this.