There's never been an oyster so divine

To be prettied up soon.

PERSONA
The summons for the entire series, and the main method of combat. In game they're called the "mask" one wears whenever they face hardships, and while it's similar to a Shadow, the psychological and canonical term for the deepest, darkest parts of a person's psyche, a Persona is born when those parts are accepted and tamed. Basically, a Persona user like Naoto can call out a part of her psyche to fight for her as she herself is incapable of casting spells or doing superhuman feats.

Naoto starts out with Sukuna-Hikona. In the game's maxed social link route, thanks to the efforts of Souji in helping her realize her true goals in life, Sukuna-Hikona changes into Yamato Takeru, her ultimate Persona.

Sukuna-Hikona specializes in attacks that are Light and Dark elemental in nature, thus giving it, and Naoto by extension, resistance against these two elements as well. However, it has no elemental weaknesses in return. In addition, it's a special snowflake by virtue of being the only Persona (Yu's many Personas don't count) that can learn Almighty skills-- very poweful non-elemental attacks that ignore the elemental resistances of all enemies unless they actually have Almighty resistance (which only boss monsters have). Think of them as the nukes of the game (helps that the element is denoted with the nuclear symbol), except they don't take away your ability to have children.

PERSONA SKILLS
Tempest Slash: Deals large Physical damage to one enemy up to two times.
Mudoon: Deals 50% chance of KO with the Dark element to one enemy.
Hamaon: Deals 50% chance of KO with the Light element to one enemy.
Megidola: Deals second-tier Almighty damage to all enemies.
Deathbound: Deals large Physical damage to all enemies.
Mind Charge: Increases the power of the next Fire/Ice/Elec/Wind/Almighty magic attack by 2.5.
Blight: Deals large Physical damage to all enemies with a chance of inflicting the Poison ailment.
Mudo Boost: Passive skill that makes Dark attacks 50% more effective.
Hama Boost: Passive skill that makes Light attacks 50% more effective.
Mamudoon: Deals 40% chance of KO with the Light element to all enemies.
Vorpal Blade: Deals large Physical damage to all enemies.
Megidolaon: Deals huge Almighty damage to all enemies.

Terms & definitions:
"Large" damage: 3nd-tier damage for all elements (yes, Physical is considered an element).
"Huge" damage: 3rd-tier damage for Almighty, 4th-tier for all other elements.

Name: Naoto Shirogane
Canon: Persona 4

Backdating: Yes please.
Threadhopping/jacking: As long as the thread isn't locked or filtered, yes.
Breaking the 4th wall: It's fine if you know some things related to Persona or the SMT franchise, but please don't tell her she's a video game character.
Offensive subjects: Not that I can think of.

Hugging: She'd be pretty awkward about that, but go ahead.
Flirting: Sure, but like above, she'll be awkward too. Even more so than just a little hug.
Kissing: As a sign of affection, sure, if it's not on the lips. The only time it'd be permissible anywhere else is when she's in a relationship.
Sexual situations: As she's 17 and underage, no thank you.
Romance/relationships: I suppose yes, but we'll see when we get to some kind of point! But I'm all for her building up a group of friends. It just takes a while for her to be able to have a romantic relationship with someone.

Mind reading: No defenses against this one, so go ahead! However, she's not alone in her headspace, as her Persona is there as well, and he may notice someone trying to get in. He's not a foreign entity either-- he's her personality given a physical form.

Violence: Picking a fight is okay, but be warned: She's armed, trained and dangerous. She's also capable of summoning her Persona out into the physical world and he will nuke you on her say-so. Literally. No seriously I mean it. He's capable of using Light, Dark and Almighty spells, and the third element is like the nuke of Persona, except no radiation and you can still have Father's/Mother's day. But it's a gigantic explosion and is very. very damaging not only to the target but all other enemies.
Injury: Yes, but no horrible maiming or loss of body parts, please.
Murder: No, please.

Anything else: Hit me up for plotting things!