Emilia is firstly introduced as a highly energetic and optimistic girl, always seen with a grin on her face. She is also very talkative, and is often surrounded by people, be it either in school or outside, and is capable of befriending easily someone. She is always goofing around and making jokes with her friends, and even teasing them, though meaning no harm with it. She also tends to have a sarcastic tone on her teasing replies, showing a more sassy side of her. After the field training, under Ryuunosuke's wing, she became much calmer and serious about everything, and started to balance raw power with strategy and to analyze the situation before jumping in. She also learnt that running away is a complete valid option, and is much more careful about the usage of her Quirk.

Kinetic Energy (運動エネルギー Undō enerugī): Emilia's Quirk allows her to create, shape or manipulate kinetic energy, which any moving object possesses. She can transfer the kinetic energy from one object to another, strengthening their attacks, or tearing holes in walls, with a simple touch; turn an object's potential energy into kinetic, inclusively making it explosive or causing a target to be unable to move or stop. She stores her natural kinetic energy, as well as the one she absorbs by the impacts in the marks on her wrists and near her ankles. Whenever she activates her Quirk, faint orange lightnings spread around her body, and her power manifests itself in a peachy color.

Due the properties of her Quirk, Emilia is able to use it propel herself around, like a jet, and cause bursts as well as increase/decrease the resistance of something (inertia), being as well, able to accelerate or deaccelerate it. With this she is able, not exactly to fly, but to propel herself around in a similar fashion to Katsuki Bakugou's Explosion Quirk. She later learns how to levitate on the air, and to be able to create shields that rebound kinetic energy.

Strengths:

• Able to fly/propel herself around, allowing her to escape/dodge faster
• Can strengthen objects, using them as projectiles as well as send blasts
• Able to protect herself from physical attacks, as she redirects them
• Deliver impacts of concussive force either by direct force, pulse of energy or other way
• Release energy in any shape, as laser or balls
• Can resist being pushed back, even if not for long (1 minute maximum)
• Able to change the proprieties of objects/liquids/etc and solidify it
• By using the branch of kinetic energy manipulation, can generate an invisible shield of kinetic energy. This shield will either absorb the kinetic energy, negates it, redirect it or redouble the kinetic energy and send it back to the foe.

Weaknesses:

• She only possesses 5 minutes (6 later on) to use her propelling or moves - the more she uses her Quirk in those the more the time decreases. After that time is reached, her consequences start kicking in (as mentioned below).
• The longer she propels herself around, her hands start to get burnt and cut due the effort. Eventually it will spread to all of her body.
• It's extremely hard to make sudden turns, and to control the time she can propel herself around. She can suffer damage if her speed is too high
• To be able to redirect physical attacks, she needs to touch them slightly. She can also be not be able to activate it under extreme stress, and even if she redirects them, it affects her surroundings
• To use objects as projectiles she needs to touch them, and can't use it on living beings
• To use energy in form of lasers or balls, she requires outside source of energy, meaning she needs to allow a non-physical attack to reach her. She also doesn't have perfect control over firing and power output, which wounds her and exhausts her
• To solidify anything, she needs to have physical contact it, and the chance only lasts for a short time. If anything melted, she can't solidify it as well she may not be able to use it in several materials. Even if skin and blood can be controlled, it's extremely difficult.
• In terms of shields, slower objects may be able to pierce through the shield as well as the field may not activate if a person or object exerts little kinetic energy against it. Offers little protection against weapons/attacks based on non-kinetic energy like thermal or electrical energy.

Supernova: Release shockwave of stored kinetic energy that tears through anything in its path. It wastes a great amount of energy, and lowers the time she can propel herself around.

Impact Zone: Using the branch of concussive force, she flies up and then down, increasing the kinetic energy on her wrist and body, able to when she crashes on the floor, create an impact area, sending everything around her flying. It's not very useful to use in unstable areas, as it can cause casualties or injuries, and she doesn't want that. It can also harm herself accidentally.

Scatter Shot: By absorving the kinetic energy, she can turn it into her own energy and release it in form of lasers of balls of energy. When it comes to the laser, she can only release one at the time, but she can release several balls of energy at the same time.

Charging Dash: She is able to charge in a linear direction with superhuman speed and strength, causing a great destructive force. It allows her to break through solid matter like cement walls, iron shields, and if powerful enough, force fields such as Ryuunosuke's telekinetic field.

Energy Empowerment: Becomes stronger, faster, more durable, etc. when they come into contact with kinetic energy, possibly unlocking abilities related to the affinity and enhancing their existing powers. Needs to have physical contact with someone's attack first, the stronger the attack, the stronger she becomes, however she may not handle the physical attack. If it overcomes her limits, she gets painful outbursts to her body.