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Mettaton
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Alphys
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Arisa is the offspring of a monster - a Dragon, and a human. She discovered that her mother killed her father before the war between humans and monsters. After the war, humans triumphed and sealed all monsters, including her, beneath the Underground, despite her mother’s pleas to keep her overground or to be allowed to accompany her daughter, which were denied, and she was taken away.

She became a member of the royal guard and was formerly in charge of Hotland. Now, she guards the Ruins after Toriel’s accidental death. She brutally and methodically kills any human who falls to the underground, delivering their souls to Asgore. However, her heart softened when she fell in love with a human named Frisk. Rather than killing Frisk, she chose to capture and keep them imprisoned in her home.

She can transform into a human form, a half-human half-monster (half-human half-dragon), and a full monster (Complete Dragon).

Profile[]

Appearance[]

In her human form, Arisa is a young woman with long, waist-length ombre hair that transitions naturally from green to white at the tips. She is often seen wearing different outfits, most of them are quite thick and fully cover the body because she likes it hot. The outfit she often wears the most is armor.

In her half-human, half-monster form, she possesses sharp fangs, and her body size and strength is significantly enhanced, allowing her to reach a height of 345 cm. Her skin is a pale green shade, covering most of her body. Has large arms and legs, equipped with sharp claws, and a long dragon tail. Additionally, she has a pair of dragon wings that spread out from her back. Typically, she dons armor that resembles Undyne’s, altered to accommodate her size in this form. She undergoes this transformation only when she wears the armor.

Personality[]

Energetic, cheerful, and confident, enjoys fighting and the heat, always seeking a challenge, a combatant adversary. Often sarcastic and blunt. Prefers to live openly and usually doesn’t pay much attention to the surroundings. Quite intelligent in the fields of science, caregiving, teaching, cooking, and extremely clever in combat. Fond of fighting, primarily inflicting physical harm on others, always attacking brutally and viciously. Always feels a thrill/manic in physically harming an opponent, but it could be anything. She often gets lost easily and is afraid of needles.

Powers/Abilities[]

Mind and Action[]

Arisa has been trained to perfectly synchronize her mind and actions. She can flexibly adjust her thoughts and movements simultaneously, without any delay between the formation of thoughts and the execution of actions/movements. Sometimes, she even acts/moves faster than her mind/thoughts.

Manic Soul[]

The soul of Arisa mirrors her manic disposition/nature, radiating a deep purple hue. Its aura ebbs and flows, alternating between shades of mint and pink. This capricious soul bestows upon Arisa an abundance of energy in her moments of excitement, thrill, or mania. With a clench of her fist, she can conjure a sphere of purple energy; the darker its color, the more formidable its power.

Energy Absorption and Manipulation[]

Arisa has the ability to control and shape almost any form of energy she has absorbed through thought. She passively absorbs energy within a 100-meter radius at an quite fast rate. This ability grants her rapid regeneration, and even more swiftly when she is excited. She can turn this power on and off at will. When Arisa sleeps or faints, her energy absorption temporarily ceases until she awakens or recovers.

Energy Overload Immunity[]

Arisa is immune to energy overload, meaning she can absorb an unlimited amount of energy without suffering from overload.

Magical Abilities[]

She can conjure magical attacks, primarily consisting of fire.

Transformation[]

Arisa possesses the ability to transform into three forms: human, half-dragon, and full dragon. The transformation depends on the total percentage of any physical energy she currently holds. During the transformation, a blinding deep green light flashes and fades. The details of the three forms include:

Human[]
  • Her normal human form. Nothing out of the ordinary.
Half-Dragon[]
  • This form has dragon-like features. She is significantly larger, standing at 3.45 meters tall. She can exhale deep green flames exceeding 2,000 degrees Celsius and breathe fire through her nostrils at over 200 degrees Celsius, possessing great strength, durability, and speed.
    • Arisa can cause significant deformation to a 150-250 meter surface of rock with a single punch. With dragon skin protection, Arisa remains unaffected by lava when accidentally falling in hot land, impervious to most physical damage - in case her entire body is dragon skin. She can maintain continuous activity for several weeks to months without fatigue and without the need for food or drink. Arisa can run at speeds ranging from 607 to 5,460 km/h. She can perceive what is happening in a flash. When spewing fire, Arisa can reach speeds of 160 to 601 km/h, while the energy is almost instantaneous. And Arisa can deliver a series of punches so rapidly that they create afterimages. Arisa can quickly adapt and become immune to almost any environment she is in, regardless of its harshness.
Full Dragon[]

In this form, Arisa is entirely a deep green dragon, with sharp eyes and deep green irises, and her size is adjustable, with no defined limit yet. The abilities of this form have not yet been discovered.

Confronting Arisa[]

When the player confronts Flowey and is about to be killed, Arisa suddenly appears and uses her vines to violently attack Flowey, causing it to flee without being dead. Afterwards, Arisa stands still and stares at you with an intense, unwavering gaze. Despite your repeated attacks, you are completely unable to inflict any damage on Arisa, as she appears to be completely immune to your strikes attack while at LV1.

After 5 unsuccessful attempts to harm Arisa, she swiftly captures you and locks you inside her home. Removing her armor, and in human form, she then begins flirting with you in a possessive, almost obsessive manner, making it clear that if you refuse her, she will not hesitate to kill you.

When you manage to trick Arisa and escape to the basement, desperately trying to find a way out of the Ruins, Arisa quickly recaptures you. She then proposes a twisted "game", declaring that she will chase after you, and if she finds you, you must remain by her side forever. Arisa allows you a 25-minute head start, though it actually takes her over 40 minutes to begin the pursuit.

Whenever you hear the ominous sounds of Arisa's approaching footsteps and the crackle of her fire magic, you know she is drawing near, her single-minded determination to capture you evident. You must then quickly find a way to hide or seek help from the friendly monsters, who will assist you in evading Arisa's relentless pursuit in the Pacifist Route. If Arisa succeeds in catching you, she will immediately take you back to her home, refusing to let you leave and forcing you to use the Save & Load mechanic to revert to a previous point before being captured.

Genocide Route[]

If you have defeated all the monsters. When you reach The Last Corridor, you will encounter Sans and then Arisa jumps out of the window. Arisa then attacks Sans and wins by slowly absorbing Sans's energy, making him exhausted and defeated. You will have to fight Arisa afterwards. Use a device from Alphys, found in the lab if you break into the lab and kill Alphys, it is a large patch attached to the back, helping to resist and reduce Arisa's ability to absorb and manipulate energy. You can defeat Arisa if you cleverly avoid her from destroying the device.

After defeating Arisa, she is still alive and there is only one blow that can finish her. She gives you two choices, with loving words and trying to persuade them to stay by her side. The first choice is to leave the underground and live together in peace. The second choice is to kill her. If you agrees to the first choice, both will confront Asgore and defeat him in Arisa's sorrow and then Flowey's. She absorbs 6 souls, breaks the barrier, lowers your lv to 1, and if you request to revive the souls she has absorbed, Arisa will resurrect the bodies for those souls and release them into the resurrected bodies. And both will live happily ever after. If you choose the second option, Arisa will be killed, and what happens next is similar to the original Undertale.

Relationships[]

Dreemurr Family[]

After the loss of her parents, Arisa became the adopted child of the Dreemurr family. Her bond with Asgore and Toriel remained tight, although it has changed somewhat with Asgore over time following the departures of Asriel and Chara, and later Toriel. Arisa, being older than Asriel and later Chara, always regarded them as her true siblings, with deep affection. Currently, Arisa still harbors a profound sadness in her heart after witnessing their departures and then Toriel’s.

Undyne[]

Undyne once trained Arisa to become a future royal guard, and over time, they became friends after Arisa joined the royal guard. They occasionally chat over the phone.

Alphys[]

The relationship between Alphys and Arisa is that of a teacher and pupil. Over time, they also became friends, although they occasionally see each other.

Sans[]

Both became friends after meeting and talking. Sans’s jokes often made her laugh a lot, but they gradually became less amusing. They sometimes chat through the door.

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