The end of the year. Busy time at work. That day was a year-end party. I had a good time with everyone at work until the last train. My junior at work, Mari-chan, was quite drunk and staggering around. "Senior, I want to take a break." I was in a very difficult situation. I was almost there to catch the train. I just wanted to rest a little at the hotel. I thought I would put her to bed and wait for the alcohol to wear off.