My sister is a warlord

Xiao Shenglin had been reborn into a time and space similar to that of the Republic of China.

He now had a very awesome sister, and most importantly, he had awakened a sister-control system.

Every successful woman had a man who silently supported her, and Xiao Shenglin was the man who supported his sister.

The Russians? Hanging a hammer.

Japanese? He hung him up and beat him up.