Morgana

If anyone broke their promise, the ring would break. 

"Since you are stronger than me, this is the best contract we can do," Reina said while her eyes studied Alex's expression.

"The basis of a deal is trust. I prefer this kind of contract rather than one where life is on the line. It just means the other party cannot be trusted."

Reina felt satisfied with his answer. "Keep this between us."

"No problem. You already wrote it in the contract anyway. If I tell anyone, you will know." Alex replied with a smile, then excused himself from the wagon.

Looking at his disappearing back, Reina's lips curled into a smile while she thought, 'He seems to be a capable man. I hope he really can help me find my mother.'

After Alex came out, Uncle Moria quickly interrogated him. Alex told him a story that he had concocted with Reina before.