Morph Weapon: You are able to use three different types of weapons, and can find many variations of these weapons in stores and loot drops. The story explains this as the demon weapon being able to magically morph itself to suit the user's needs.
Ms. Fanservice: Noticeable by the aversion thereof, at least by 21st Century standards. Which is to say, still outrageous by the supposed 17th century setting. An actual knee-length skirt and a top that exposes only the arms makes for conservative clothing by anime standards. You can catch a flash of gold by making her Double Jump, but if you're that desperate...
Gadgeteer Genius: A good portion of her skills are gadget related — land mines, sentry guns, guardian mini-robots, et cetera. With the newest expansion pack, she gets a new weapon that can be converted into all sorts of murder-related devices.
Ms. Fanservice: Angela may be fetish-fuelling, but Natasha is much more overt. Top that doesn't cover the chest properly? Panty Shot-friendly miniskirt? And that's not getting into the even more revealing alternate costumes!
Dark Is Not Evil: She has a lot of dark-based skills and her fighting style is really brutal, plus there were rumors that she may be a vampire. However, Roselle mostly uses it for fighting monsters, or protecting her sister.
Fetch Quest: His mostly involves getting scrap metal parts in order to melt down and make new equipment for everyone.
Hidden Depths: He wanted to be a hair stylist but relented after it would have broken his family's heart. Although he still retains enough skill that he's the guy you turn to in order to get changed hair colors or designs.
Only Sane Man: Only NPC who the specialists haven't snarked at when he gives you a normal quest.
In Universe Nick Name: She's been called the spider lady due to an incident with cheese pizza... and as soon as you find this out she sends you off to kill the spider lady (boss) in a dungeon because there can only be one.
Lethal Chef: The first thing you find out about her. For example she once served raw uncooked pieces of fishmen monsters to everyone.
Supreme Chef: Views herself as such, everyone else...not so much.
The Apprentice: To Patricia, although it appears she's actually almost to master level.
Cordon Bleugh Chef: Several of her recipes in story are questionable, but at least people are willing to try them.
Creepy Doll: Averted; her dolls were given to her by the specialist from mandragora plants. They look normal except for the leaves showing on top of their heads.
Bratty Half-Pint: Her chat option has her getting snippy toward the player when she thinks they're 'underestimating' her, and she often scolds and talks back to Natasha in the few conversations that come up between them in-game.
Small Girl, Big Gun: 'Natch, given that she's Natasha's skill trainer. Also wears a backpack stuffed to the brim with various guns, with the barrels of a rifle and a gatling gun sticking out of the top.