Koyuki (Demon Slayer)

Koyuki is a supporting character of the 2016 manga and anime series Demon Slayer: Kimetsu No Yaiba. She was the fiance of Hakuji who later one became the Upper Moon 3, under the name of Akaza, the daughter of Keizo the owner of a martial dojo and Akaza’s master.
==Appearance==
Koyuki appeared to be a weak beautiful young girl with pink and flower shaped eyes, black hairs tied in a large bun locked with a hairpin that has three different snowflakes on it. She wore a pink kimono decorated with white circle on it. 
==Personality==
Koyuki was a very kind and nice girl who tended to get emotional whenever interacting with Hakuji, even when having a ordinary conversation with him due to the gratefulness she felt towards him. This was especially the case with regards to an annual fireworks show, which she enjoyed a lot due to it giving her hope and reminding her of all the opportunities she had to enjoy things that she never previously had the chance to. 
==History==
Koyuki was borned in the world with a very weak and sick body, and tragically, because of that, her mother took her own life by drowning as she feared the thought od seeing her child dying. While resting at home, her father would introduce his new student, Hakuji to take care of her. Some time later, the master of the dojo next door would develop feelings for her, however he had an extremely arrogant, rude and carelesss person that forced Koyuki to go outside while she is still in bad shape. Afterward she would have an asthma attack and he left her out of fear. She would later on be healed by Hakuji and live a peaceful life with her father and fall in love with Hakuji. 
A few years passed and they would get married which made the master that fell in love with her in the past get jealous. He would tell students from his dojo to fight him, but would get all defeated by Hakuji. The next door dojo master would find another way to get revenge by putting poisons in the well, causing their death. Koyuki was 16 year old when she passed away. 
==Trivia==
*Many of Akaza's blood demon arts are named after Koyuki and fireworks, refering to his promise to Koyuki to see the fireworks. 
*His blood demon art, Compass Needle" shows the pattern of a snowflake like the hairpin of Koyuki due to his impact on her death.
==External Links==
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