Reborn as the Defiant Son-in-Law

Reborn, he decides to live differently. No longer enduring and retreating, he chooses to wear a deeper disguise. By day, he remains the despised useless son-in-law, smiling at taunts; by night, he is the "Shadow Emperor" manipulating international capital, making global giants tremble. When all secrets are revealed, the world realizes who they were mocking. — Description from novelcodex.org