Transmigrating to 1945: A Showa Soviet Tale

[Alternate history] [Espionage suspense] In 2025, Kobayashi Kei, an ordinary university student in socialist Japan's “Red Sun Federation,” touches a bloodstained historical document in an archive and unexpectedly plunges into Tokyo in 1945. He witnesses the birth of the “Tokyo Wall” with his own eyes, while also having to figure out who the real enemy is in this shattered land: the foreign occupiers, or the militarist ghosts lying dormant at home? Every choice he makes could cause his homeland in 2025 to vanish from history forever...