This is a summary of the text:
- Zusa Aizawa is a workaholic who dies from overwork and is reincarnated as a witch in another world by a goddess.
- She decides to live a slow and peaceful life on a plateau, where she defeats slimes every day and sells medicinal herbs to the villagers.
- After 300 years, she reaches the max level of 99 and becomes the strongest witch in the world, but she doesn't want to be famous or fight anyone.
- She meets a red dragon named Leica, who challenges her to a duel and loses. Leica becomes her disciple and lives with her on the plateau.
- Zusa also meets other characters, such as an elf girl, a ghost girl, and a golem girl, who join her family.
- Zusa enjoys her slow life with her new friends and protects the village from any threats.
Here are the key facts extracted from the text:
1. Zusa Aizawa is a 27-year-old single woman.
2. She has worked hard as a company slave, neglecting other aspects of life.
3. Zusa died from overwork in her 20s.
4. In her next life, she wishes to live happily and be reincarnated with mana circulating in her body.
5. She is reincarnated on a plateau and chooses to live a slow life.
6. Zusa is reborn as a 17-year-old and finds herself in a secret hot spring.
7. She becomes self-sufficient and has money.
8. Zusa moves to a house on the plateau and learns about the village of Hura Tamura.
9. The village is peaceful with slimes as the only monsters.
10. Zusa registers with the adventurer's guild as a witch level 1 with various abilities.
11. She decides to keep quiet about her immortality at level 1.
12. Zusa begins a slow life, lazing around, sleeping, and occasionally selling medicine she makes from herbs.
13. After hundreds of years, she becomes known as the Witch of the Highlands and knows the village's history best.
14. Zusa helps the village behind the scenes, like curing diseases and examining salarymen.
15. She defeats slimes daily for 300 years, accumulating experience points and abilities.
16. Zusa's experience points reach 10.84 million due to a special feature that increases gained points.
17. She becomes known for defeating powerful beings and reaches max level as a witch.
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