This topic will explain this work. The Oiwake Engine Depot, where the story came from, is here. The Oiwake station was where coal shipped from the coal mine area on the north side gathered. Coal is once collected at this place. And they are transported to Muroran Port. In order to transport coal, a base for the steam locomotive in Oiwake was created. Before the railway was built, there was no town at this location. With the steam locomotive drivers, mechanics, and railway staff living, the town of Oiwake was created here. The route to Yubari has been abolished because there is no coal transportation now. Other lines are being debated as well. The retired steam locomotive mechanic lives in Oiwake, so the No. 320 stored there is beautifully polished. No.320 is now preserved in tourist facilities in Abira Town. https://d51-station.com/ The abolition of steam locomotives in Japan was carried out in Shikoku on a trial basis. Then, Honshu and Kyushu were abolished in that order