Slapped into Power

Slap God Finn Linden transmigrates into a young master. Despised by his family and poisoned by the Linden family's adopted son, he awakens a system that makes him stronger with every slap. He severs ties with his family, marries the heiress of a great family, slaps down powerful enemies, and becomes an invincible existence that the Linden family can only look up to in vain.