The Train of Resentment, the Arrival at the Station Ahead Is Infinitely Terrifying

[Unlimited flow + calm and rational male protagonist + not a virgin + high mortality rate + unit copy] Lin Mo, a former surgeon, is so calm that he is almost cold-blooded. A train, six passengers, a ghost building of the Republic of China. Seven days, either find Duan Yulou or die. Every stop is a matter of life and death.