Unlocking the door of a certain after-school club store for elementary school students

"Unlocking the entrance door by non-carrying a key"

This is an after-school club that opens in the morning. When I heard that the store was unlocked, I thought it would be a lock break, but when it arrived, it was an H248 disc tumbler cylinder. It seemed like he was on his way to work before the store opened, but he didn't seem to have brought his keys. Even if he wanted to go back and get it, he didn't have time, so he decided to call. We cannot leave children alone on the street.

The work took a little time, but after oiling, I was able to unlock it with normal picking. The children who had been waiting outside rushed into the store and were making various preparations.