Yukio Shirayuki

Yukio Shirayuki is one of the main character in the series. He is a Yuki-Onna and one of the romantic admirers of Tsubaki Tachibana. He is a stalker and has an obsessive love for Tsubaki.

Personality
When Yukio was first introduced he was portrayed as a lonely, depressed and misunderstood boy. In the first semester he confessed his love to his teacher Sakura Kotsubo, who then began to take advantage of him, leading Yukio to freeze her. With the incident rumors spreading about her, but after meeting Tsubaki Tachibana and becoming friends with everyone, he's shown to be a reserved boy with little emotions, which he only expresses when having moments with Tsubaki. He starts to love Tsubaki so much that he wants to have babies with her, even if he has to force her.

He is often seen stalking and hiding in different locations, which is often played up for comedic effects. (He often hides in amusing places; in bushes, under tables and occasionally within furniture).

After Tsubaki saves Yukio from getting killed by Kotsubo, his love for Tsubaki becomes even stronger to the point that he admits that he loves her and wants to have children with her. Yukio even sneaks away from his side of the P.E. class to see Tsubaki do her exercises. When doing so, he blushes, usually saying, "Tsubaki, that was great." He sometimes refers to her as his "Beloved", to the point that it becomes somewhat habitual as the series progresses.

Magic and Abilities
Yuki-onna Physiology: Being a demon of ice, Yukio possesses control over ice and coldness. He is also able to easily withstand cold environments that humans and other demonic sub-species cannot easily tolerate. Ice-Make (氷の造形魔法, アイスメイク Aisu Meiku): A form of Molding Magic that allows the user to create ice at his will and to shape it into objects. Ice-Make is known as an extremely versatile form of Magic, coming in useful both in battle, for offensive and defensive purposes, and outside of it. According to him, Ice-Make allows the user to produce virtually anything, granting the user an unmatched creation capability. As an Ice-Make user, Yukio is an individual resistant to cold and as such is able to take damage from ice and snow-based attacks without sustaining major injury and is either completely immune to snow based attacks or is more resilient to it than other people. Snow Magic (雪魔法 Yuki Mahō): A type of Magic which allows Yukio to produce and control snow, and which has been described as powerful enough to turn Yukio's surroundings into "a world of purest white" in an instant. His control over snow grants him the offensive abilities to generate snowballs or avalanches against his foes. However, users of Ice-Make Magic, or generally individuals resistant to cold, are either immune to Snow Magic or more resilient to it than other people.
 * Cryokinesis: As a Yuki-Onna, Yukio has almost complete control over ice at will. Meaning that he can freeze and then control any form of water and his attacks are all water or ice-based. It also means that water attacks are completely useless against him. When using his power at full capacity, his hair usually turns into ice. He can create anything that he wishes and his ice usually takes the form of either ice claws or ice projectiles.
 * Ice-Make: Lance (槍騎兵ランス Ransu): Yukio extends his arms forward, creating long, curved ice lances that he shoots toward his enemy, impaling them. This makes for a powerful ranged attack.
 * Ice-Make: Freeze Lancer (氷創騎兵フリーズランサー Furīzu Ransā): Yukio creates larger ice lances that he attacks his enemy with.
 * Ice-Make: Block: Yukio uses one hand to create a big block of ice that is able to block incoming attacks. (Unnamed)
 * Ice-Make: Shield (盾シールド Shīrudo): Yukio creates a large shield made of ice in front of him, whose shape is vaguely reminiscent of a flower, which shields everything behind it.
 * Ice-Make: Hammer (大槌兵ハンマー Hanmā): Yukio creates a large ice hammer that floats above his opponent before dropping on them with great force.
 * Ice-Make: Ice Hammer (氷鎚アイス ハンマー Aisu Hamā): Yukio creates a giant spiked hammer made out of ice and hammers it onto the target.
 * Ice-Make: Ice Impact (氷撃の鎚アイスインパクト Aisu Inpakuto): Yukio creates an intricately-designed hammer made of ice, which he brought down onto the targeted area, creating a great impact.
 * White Blizzard: Through the use of his Snow Magic, Yukio can prompt snowflakes to fall from the sky in a large area, drastically lowering the place's temperature; something which causes human opponents to shiver, at the same time rendering their breath visible.
 * Blizzard: Yukio has shown the ability to generate and control blizzards, moving them around through hand gestures and using the blunt power granted by their cold winds to strike multiple targets.
 * White Out: Yukio extends his arm frontwards, summoning forth his Magic Seal and enveloping the immediate area around him in a large snowstorm which, according to his own words, steals away his foes' visibility and at the same time freezes them. This technique's execution covers everything within the place where it is cast with snow, including the enemies struck by it.
 * White Fury (ホワイト フュり Howaito Fyuri): Yukio extends his right arm forward, with his hand open, and then places his left hand on his right forearm. This prompts a medium-sized snowstorm to be generated from his right palm and fired towards the target. The snowstorm, starting out as rather small near Yukio's hand, grows larger as it moves away from Yukio and nears the opponent. This spell can be rapidly used in subsequent reprise, even while Yukio is moving.
 * White Fang (ホワイトファング Howaito Fangu): Yukio swings both hands into a clawing-like position, conjuring an offensive spell made out of snow that attacks the aimed target.
 * Snow Clone: Yukio creates a clone made of snow, in an exact likeness of himself, to intercept an incoming attack, distracting the opponent, and thereby allowing him to launch a counterattack. (Unnamed)

Quotes

 * (To Tsubaki) "We'll have a nice life together in the end, we could say that the baby is just a way to keep us together."
 * (To Tsubaki) "Don't be shy now, this will also be my first time."
 * "I will stalk and freeze you all."
 * "Shall we eat a cherry snow cone together?"
 * (To Tsubaki) "Let's go make a baby."
 * (To Tsubaki) "Make me your lover, Tsubaki."
 * (To Tsubaki) "Please, call me Yukio."
 * (To Tsubaki) "Please, call me your little snow bunny."
 * "Whether you're a demon or a human, there's no difference in the value of someone's life."
 * "What can I say, I just don't know how to hold back!"
 * (To Tsubaki) "I don't have a lot of time left. So Tsubaki... for just tonight... please make me your lover..."

Trivia

 * Another running gag is that he throws ice-based projectiles to disrupt any sort of tender moment Tsubaki is having with any other man.
 * Yukio has not been in school for a while in the manga, anime and game; in the anime, he comes to the school because of Tsubaki in the newspaper.
 * Yukio in the manga seems to take being called a "Stalker" as a compliment and refers to himself as one. One occasion being is when Lycidas told him that he is "watching people again" Yukio appeared from the ceiling and replied by saying "When are you going to call it 'stalking'?"
 * A running gag in the series is that Yukio always appears unexpectedly in the oddest locations (under tables, behind doors, the ceiling, bushes, in the bathroom, and even outside of the window on the academy's second floor).
 * Yukio is shown to be a very talented cook. (Anime)
 * His family name, Shirayuki (白雪), roughly or inexactly translates to "Snow White" in Japanese, but not as the princess as if it had the suffix "-hime" at the end of it, with hime (姫) exactly translating to Japanese as an honorific term of endearment, the exact version of "princess" being ōjo, with "Ōjo" being the opposite meaning of "ōji" (with the accent diacritical mark ō), meaning "prince" in the Japanese language. Furthermore, the proper translation of Yukio's surname would be "snow white" or "white snow," with "shira" being another pronunciation or reading of the word "shiro" (白) or haku (白), literally meaning "white" and "yuki" (雪) meaning "snow."