2019 has come to a great extent, the years are getting older, and memories are always repeated in the mind, like various fragments, occasionally patched together into an old photo, but always missing a corner of time, or missing a character's face, The imperfect memory fragments made my nostalgic plots grow, and I wanted to go to the old town to piece together the memories. As the old town near the Drum Tower, 15 Kui Lane is a place worth remembering for every Hangzhou person like a water year. Most of these are old buildings in the Republic of China, low bungalows, wooden stairs, and compact living space. The high-rise buildings and 15 Kui Lane in the new era are insulators, and they seem to be two eras, which are irrelevant and do not disturb each other. However, the elderly are here to live in their old age, flowers, birds, fish and insects, fresh air, vegetable market, snack bar, daily necessities, complete supporting facilities. Time is solidified for them, no need to learn modern technology, no need to climb high buildings every day, open your eyes every day, go to the neighbors' homes, play mahjong, chat, drink, time flowed safely in the fingertips, but did not waste time. 15 Kui Lane, time in the long history.