A woman who died from overwork in her previous life is reincarnated as an immortal witch and is supposed to be living a slow life for 300 years, but as the title suggests, she ends up killing slimes and reaching the maximum level, something every RPG fan has thought about at least once, and she ends up running into a lot of trouble that disrupts her slow life. This is a homely comedy that depicts how she solves these problems and the little everyday incidents that occur.

Shalsha's Profile

Appearance of the Spirit Slime Sisters
Source: I've Been Killing Slimes for 300 Years and Maxed Out My Level © SQUARE ENIX
A slime spirit was born about 50 years before the events of the main story, when the souls of the slimes Azusa had defeated for over 200 years came together. Falfa is her twin sister. In order to take revenge on Azusa, who had repeatedly killed slimes, she accumulated mana (magical power), developed the "Evil-Destroying Magic ", and appeared before Azusa. She appears as a green-haired 10-year-old girl, but having lived for 50 years, contrary to her appearance, she excels in liberal arts subjects such as history and theology. Compared to her older sister, she has a quieter personality. However, since there is no way that anyone could have witnessed the moment she was born, it seems that the characters calling her older sister or younger sister are self-proclaimed.

Azusa vs. Sharsha

Sharsha challenges Azusa to a fight
Source: 300 Years of Killing Slimes, I've Reached Max Level © SQUARE ENIX
Evil-Destroying Magic can deal powerful damage to specific species or neutralize their magic. While it may seem like cheating, the narrower the area of impact, the more powerful it is. Conversely, if the area of impact is too wide, such as for creatures, the effect is almost nonexistent. When Laika noticed this, she realized it would only work on Azusa, and was defeated instead, resulting in failure. Furthermore, she used up so much mana that she was unable to use it for several decades, effectively making it impossible for her to exact revenge. Later, at Azusa's suggestion, she was adopted as her daughter.

A Good Relationship with Azusa

Sharsha Calls Me Mom
Source: I've Been Killing Slimes for 300 Years and Maxed Out My Level © SQUARE ENIX
At first, she was stubborn, but after her sister told her they'd live happily together, she began calling Azusa "Mom" and living with her. Furthermore, in the character introduction for the web version, it is stated that his true motive for revenge was that he wanted a mother and was unable to be honest about it, which could also be interpreted as him never intending to kill Azusa from the start.

A Heartwarming Story

The Azusa Family
Source: I've Been Killing Slimes for 300 Years and Maxed Out My Level © SQUARE ENIX
Azusa, now the world's strongest witch, takes on the dragon girl Laika as her apprentice. However, she doesn't tolerate her overwork and encourages her to enjoy a relaxed life. Laika grows increasingly attached to Azusa's kindness, and she always greets her with delicious meals. When the two draw a large magic circle as a way to warm up their strength and take on a new challenge, the villagers erupt in a frenzy of joy. It's refreshing to see them perform at their own pace while also becoming the highest-ranking witches.

Spirit Sisters

Azusa and the Spirit Sisters
Source: I've Been Killing Slimes for 300 Years and Maxed Out My Level © SQUARE ENIX
Then, Azusa and Laika are confronted by the mysterious slime spirit sisters, Shalsha and Falfa. Apparently, the two were born from the accumulated grudges of the slimes Azusa had accidentally defeated. There was an unexpected incident where Falfa, carrying the grudges of the slimes, challenged Azusa to a battle of revenge, but Azusa welcomed the two spirit sisters into her home and began living with them.

A Heartwarming Family

Azusa Family
Source: I've Been Killing Slimes for 300 Years and Maxed Out My Level © SQUARE ENIX
Azusa looks like a high school student, Laika looks like a middle school student, and Shalsha and Falfa look like elementary school students. The spoiled Sharsha calls Azusa "Mama," while the tsundere Falfa calls her "M-Mom..." and they both make Azusa fall head over heels for them. The smiles of the four of them relaxing in family fun will warm your heart.

Voice actor: Minami Tanaka

Minami Tanaka's profile image
Source: I've Been Killing Slimes for 300 Years and Maxed Out My Level © SQUARE ENIX
Born January 22, 1996. From Kanagawa Prefecture. Height: 156cm, Blood Type: O. Affiliated with 81 Produce & GREEN LEAVES. She passed the Avex x 81 Produce "Wake Up, Girls! Audition" in 2012. She made her voice acting debut as Katayama Minami in the 2013 anime "Wake Up, Girls!" and is currently active as a member of the voice acting unit of the same name.

Newcomer Award Winner

In 2017, she won the Newcomer Award at the 11th Seiyu Awards. The year of judging, 2016, was the year she played the protagonist Ueya Agari in "Scorching Ping Pong Girls" and the crucially differentiating Triangle in the third season of "PriPara."

Summary

The novel was serialized on "Let's Become a Novelist" and later published as a book. It was later adapted into a manga by Yusuke Shiba for Square Enix's "Gangan Online." Its popularity was so great that it ranked 9th in the paperback/novel category in the 2019 edition of "This Light Novel is Amazing!" Please check it out.

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