I Transmigrated into the Siheyuan and Became the Legendary Little Tyrant

I transmigrated into the Siheyuan and became Liu Jianguo, the legendary “Little Tyrant.”

[Main quest: Clean up the Hongxing Siheyuan and build a harmonious community (?)]

[Quest 1: Teach the nasty mother-in-law Jia Zhangshi a lesson!]

Jia Zhangshi: “You useless, childless bastard!” I slapped her and sent her sprawling unconscious.

[Quest complete! Reward: Strength +20, Constitution +20!]

[Quest 2: Expose the two-faced Qin Huairu!]

Qin Huairu: “Jianguo, your sister-in-law’s family has run out of food...”

I locked the door. “Get lost, and stay away from me!”

[Quest complete! Reward: Precise Intelligence ×1!]

[Quest 3: Crush hypocrite Yi Zhonghai’s plans for his old age!]

In front of the whole courtyard, I called him out: “Uncle Yi, are you planning to have Silly Zhu look after you, or are you looking for a fall guy?”

Just when I thought all I had to do was teach those vermin a lesson, the System issued a hidden quest.

[S-rank classified mission: Unmask “Gecko,” the enemy agent lurking in the steel mill!]

I looked at the [Precise Intelligence] in my hand and smiled.

It clearly read: Yi Zhonghai, Gecko’s subordinate; Deaf Granny, KMT sleeper agent...

Wait, why was Qin Huairu’s name on there too?!