Luo Luo Yingsuo, the youngest hero in the Marines, mastered the Six Powers and the Three Types of Haki.
That is, until he witnessed the truth at Ohara and saw the Celestial Dragons' crimes in Mary Geoise.
If the light can't wash away the darkness, then he will become the darkness itself.
He faked his death and escaped, founded the Immortality Society, took control of the Shichibukai, and built a city of desire.
Sengoku regards him as a beloved comrade who went missing, while Dragon sees him as a mysterious ally.
When the truth is revealed, he will stand atop the Red Line and declare war on the World Government:
“This era needs a new master.”