As a follower of Manan, he was a navy crew member, specifically part of the naval infantry. Anyway, Manan's followers were either sailors or navy; occasionally, when far from the Empire, they would disguise themselves as pirates.
As Knights whose main activities were on the sea and rivers, they underwent Manan's harsh training, allowing them to deal with threats like Green Skins, Giants, and such.
This Titus came from the renowned Marine Knight Order of Manan. The apprentices of this Knight Order didn't need noble origins or to be particularly devout; many were rough, uneducated people but adept in combat. Thus, many territories would even hire them as Mercenaries.
Fighting him would clearly be quite beneficial for Su Li to understand the fighting capabilities of Blue Mirror Territory's army in the upcoming encounters.
