The Mystery Club [Quick Transmigration]

This is the next book I'll be working on.

After dying, Cheng Zhen became bound to a "suspect" System that sent him through different cases to find the real culprit and clear the original owner's name.

An old mansion, dimly lit streets...

Evil takes root here, but justice will never be late.

I see you. Where do you think you can hide?

System: (interrupting) Ahem, we're a proper mystery System. There's no need to be so dramatic.

Cheng Zhen: Fine, I'll get straight to it. The killer is...

System: Wait! People hate you because you keep spoiling the killer every time!

Cheng Zhen: What a pain.

System: Just follow the procedure. Go look for evidence first. And don't forget, if you get the deduction wrong... you'll have to say goodbye to this world forever QWQ

A male protagonist, no romance, wish-fulfillment novel.

A fair-play mystery.

The focus is on the methods, so let's all guess the culprit together QAQ

The first sweet reader to guess both the method and the culprit will get a big red envelope! (I haven't started writing yet, but I'll set a flag here first.)