A Man in Republican-Era China, but the System Insists I'm in an Infinite Survival Game

[The protagonist is no saint] + [Sister-in-law] + [Coercion and temptation] + [Villain's story] + [Tomb raiding] + [High Martial] + [Warlords] + [Stat-boosting] + [Lighthearted comedy] + [Multiple women] + [Supernatural] The good news: Lin Mo transmigrated. The bad news: He transmigrated to the Republican era, where human lives were worth less than weeds. The good news: The moment he opened his eyes, he was lying in his sister-in-law's bed. She was alluring and smiling at him. The bad news: His big brother would be back in ten minutes. His fists could shatter stone. The good news: At the crucial moment, his System activated. The bad news: Something was off about the System. It was a survival System, and it insisted he was trapped in an endless series of survival scenarios. 【Ding! The Host is being possessed by a female ghost. Escape immediately. Reward: one yellow talisman.】 A female ghost? Lin Mo slowly turned to look at his sister-in-law, who was batting her eyelashes at him, and silently swallowed. “System... you call her a female ghost?” 【Host, escape the female ghost's clutches alive.】 【Ding! Congratulations, Host! You have killed the final boss, the Ghost King, and cleared the scenario with an SSS rating.】 Lin Mo looked at his big brother, whom he'd just shot dead, then glanced at the System screen. He was silent for a long time. “System, you call him the Ghost King?”