It all started with childhood memories. The profound foreign appearance began to take root in the little girl's heart. Taking root, sprouting. The obsession is getting deeper and deeper. 2017 AD - Successfully attracted the first world of the "Exotic Strategy System" (⊙v⊙): Encounter on the Sino-Russian border. The second one, to be determined. This article is also the author's obsession. Part of the content is integrated with his own experience. The writing may not be good enough, but it is all my hard work and my obsession.