Synopsis Part 3!! (If you're lost, I recommend starting from Part 1, 'Brothers'!)

The protagonist, Germany, is on a mission in Siberia, Russia, at a place with beautiful stone walls. The Tobolsk Kremlin.

The cold in midwinter (January) averages below -20°C, and during harsh periods, it reaches -30°C to -40°C.

However, he... ends up being captured by someone.