I missed the last SBS, so here's one for Haku reaction to most of the other PC.

Annabelle: Haku reaction would mainly be wary, since while he doesn't know much of Annabelle's history, the scent of gunpowder alone would stand out as he knows that not many people can get that scent unless they're using it a lot. If he does know Annabelle other nickname and what she's done, he'll have to arrest her.

Rico: Would find him pleasant to be around, but since he's a pirate, Haku is obligated to arrest him on sight. That being said, if he has to chase Rico or a criminal, he'll go for the latter first since Rico crimes are not that high just yet. 

Morgan: Finds Morgan a great person from a first impression and wouldn't mind be stationed there if there was an opportunity. A role model citizen by all accounts and respectable ambition. 

Luna: Haku would find Luna a surprising sight since he only heard of the Minks tribe. Luna would be the first mink he would see, and would be excited to know more about the Minks.

Suiten: Similarly, Haku seeing a mermaid will make him very excited as he has never been to Fishman island. Will ask a lot of question if given the chance to know more about her homeland.



As to additional information, Cadog favorite alcohol is rum. He carries multiple flask with him and has a whole roomful of crates next to his private room.

Lots of other marines also like this because they can often barter with him to get a bottle of good quality rum, so long the alcohol they trade is something he likes.