A Bizarre Night in a Hotel Room

An old classmate, Ah Yuan, mentioned that he had traveled to Beijing for business and was left with no choice but to stay in the last available hotel room on the outskirts of the city due to an early morning event the next day. Upon entering the room, he was surprised to find an elderly cleaning lady tidying up. The lady assured him that she would be done soon, but Ah Yuan remained silent, noting that she was left-handed.

While he was trying to sleep, he suddenly heard a woman crying in the neighboring room. Annoyed, Ah Yuan called the front desk. To his shock, the front desk informed him that the room next door was a storage room, not meant for occupancy. It was then that Ah Yuan realized the crying was coming from the room above.

He told me that he insisted on me staying with him tonight, even if he had to bend me. I didn't know how to respond to my old friend's request, but our takeaway had just arrived, so we decided to eat and chat. At that moment, I was taken aback. I suddenly noticed that Ah Yuan was using chopsticks with his left hand...