I have a sign-in system when I go to the courtyard

I have a sign-in system when I go to the courtyard, also known as 穿到四合院我有签到系统, is a captivating novel that follows the journey of Li Chenyu as he finds himself in 'The Story of Siheyuan' with a unique sign-in system at his disposal. With his newfound ability, Li Chenyu embarks on a thrilling adventure, acquiring valuable assets and manipulating his way through life. Join him as he navigates the world of Siheyuan with cunning and strategy, making each sign-in count towards his ultimate success.