He wasn't lacking in means to crack the suitcase's lock; what he lacked was time.
He had to figure out what was inside the box before Ji Weitian returned—time was of the essence!
Qin Nanyu flipped through Little Glutinous Rice Dumpling's ledger once more but failed to find the answer he sought. Then it occurred to him that Yaoyao, being so clever, wouldn't need to note down a three-digit combination.
Qin Nanyu put the ledger aside and quietly sat next to her, leaning down and calling out softly, "Yaoyao, I'm Daddy."
"Daddy's silly..." Little Glutinous Rice Dumpling heard his voice and turned her small body with a plop, murmuring with disdain.
Qin Nanyu: "..."
Was this the image his daughter had of him?
He felt the need to clarify.
Calming his emotions, Qin Nanyu spoke again, "Yaoyao, can you tell Daddy what your suitcase password is?"