I Am a Pirate and Become the Son-In-Law of My Aunt at the Beginning.

Lucifer Rocksell, who traveled through time and became the son-in-law of the Four Emperors, got Sanji's script and married the ice beauty Garrett in name only. After his hometown was captured, he had no choice but to die. Fortunately, Lucifer has acquired the sword-drawing system, and he can accumulate the number of sword-drawing times and receive various rewards to become a great swordsman. I can't fight for the time being, and I can't escape even if I want to, so I can only really become my son-in-law and join the Big Mom Pirates. However, as Lucifer becomes stronger and stronger, it seems that the time has come for the Big Mom Pirates to change their names. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.