Qingyu Nian Danzhou Port referred to Danzhou City in Hainan Province. Danzhou City was located in the northwest of Hainan Province. It was a prefecture-level city in Hainan Province, and it was also the location of Danzhou described in the Qing Dynasty.
Most BSD light novels often have complex characters. Since they are based on literary figures, they bring in the depth and complexity of those original personas. For example, a character might have the same traits as a famous writer but with a unique twist for the BSD universe.
Danzhou Port was located in Danzhou City, Hainan Province. Danzhou Port was on the east side of Qing Kingdom, close to the sea. Although it used to be a bustling port, Danzhou Port gradually became quiet and decadent due to the construction of other ports in the south and the connection of sea routes. Although their income had decreased, the lives of the residents were still acceptable because the emperor had already exempted them from taxes for a few years. Danzhou Port was beautiful and quiet, suitable for people to live in. Occasionally, some big shots would choose to build manors here. However, due to the distance from Jingdou, there were not many officials who really stayed. Therefore, the Danzhou Port in Qingnian referred to the port of Danzhou City in Hainan Province.
Port Chicago 50 is indeed historical fiction. It blends historical facts with creative imagination to present a fictionalized account of events related to that period.
I don't have a definite answer. Sometimes businesses face challenges that could lead to closure, but until there's an official announcement, it's all speculation. You might try asking people who are familiar with the comic store or keep an eye on local business news.