Fan CastingWar is Hell but Love is Heaven 2

1944, Sino-Japanese War. Hiroto Satō is a soldier tasked with investigating the activities of Unit 731. Among the hostages is a young Chinese woman named Lei, who speaks to him but is silenced by one of the scientists. Hiroto leaves but cannot forget about Lei. When no one is around, he returns to her and confesses his love for her. Although the love is mutual, the woman makes him a condition: she will run away with him if he frees the rest of the Chinese prisoners. The man agrees. The men manage to escape and Hiroto and Lei with them. The enraged Shirō Ishii orders to find the soldier and kill him. Meanwhile, Hiroto and Lei find refuge in one of the abandoned bunkers. Will they be able to escape death?