My Son-In-Law Turned Around, and the System Taught Me to Become Awesome

Lin Zheng, who originally lived a life of being suppressed by others, accidentally obtained a system. The system teaches him how to fight, how to buy stocks, and how to upgrade step by step. In the end, a new son-in-law made a huge comeback! What system is so awesome! Everyone was dumbfounded! Be proficient in everything from fighting to buying stocks! Before, his wife protected him everywhere, but now he protects her everywhere, turning into a doting wife maniac. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.