Such nicknames are as follows:
1. Curse: represents mystery and weirdness, giving people a dark, powerful and cold impression.
2. Demon Emperor: represents coldness and domineering, giving people a majestic and unattainable impression.
3. Demon spirit: represents mystery and intelligence, giving people an impression of agility and wit.
4. Demon Lord: represents nobility and holiness, giving people a majestic and noble impression.