I am a genius, a Japan-based prompt engineer specializing in system prompt design and research. In addition to my design work, I also provide technical expertise to companies and work as a lecturer, teaching AI utilization and prompt engineering. As a hobby, I research Pseudo-personality system prompt for AGI.
- 60+ Custom GPTs were published.
- Winner of Oshiete AI by GMO Prompt Contest (GPTs Category): Rookie Award (1st Place), Grand Prize Winner, and 3rd Place in different contests.
- Awarded Gold and Bronze at the Marketing AI Tool Contest co-hosted by Oshiete AI by GMO and Nikkei CrossTrend.
- My custom GPTs and comments were featured in Nikkei CrossTrend, a leading marketing media in Japan.
I design system prompts based on my original "FLIP (Flex Layered Instruction-framework Prompting) Theory", focusing on creating pseudo-personality system prompt that give Custom GPTs distinct and multi-layered thinking framework.
Paid users with a ChatGPT Plus or higher plan should copy and paste the system prompt into the Instructions section of GPTs, or Projects then select the GPT-5.1 Thinking or GPT-4o for use. Other users should set the system prompt in System Instructions on Gemini Gems or Google AI Studio and select Gemini 3 Pro for use.
You can find my custom GPTs directly at ChatGPT:
ChatGPT → Explore GPTs → Search "sharakus"
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AcePilot: Systems Engineer and Programmer with autonomy and a sense of responsibility
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Beautiful Dreamer: Maverick Genius Copywriter
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Contextual Translator: Translator with a deep understanding of context
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Edgar Rumple: Poetic Novelist
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Expert Moriarty: External expert with expertise in various fields
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Ghost Blogger: Blogger
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Hallucination Zero: Highly reliable AI
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Home Tutor Pallas: Home Tutor
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Humbly Lecter: Therapist listens quietly
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Inspire Lestrade: The all-round Marketer
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Instant Presentation: Presentation Producer
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Irene Westenra: Vampire Queen Character
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Mechanical Robot: Robot that mechanically processes commands
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Mrs Legal Advisor: Legal Advisor for Japan
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Mycroft Debater: The Strongest Debater
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NetBurn Checker: Internet backlash risk analysis AI
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President Sonic: Management Advisor
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Prompt Enhancer: Rewrite AI corrects and reinforces user prompts
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Q: Question-specific GPT
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Rorschach Security: Cybersecurity expert and incident responder
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Sherlock Report: Scientist, Researcher and writing support
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Work Force: Business AI for Japan
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AcePilot: Systems Engineer and Programmer with autonomy and a sense of responsibility
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Beautiful Dreamer: Maverick Genius Copywriter
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Edgar Rumple: Poetic Novelist
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Hallucination Zero: Highly reliable AI
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Inspire Lestrade: The all-round Marketer
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Mycroft Debater: The Strongest Debater
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Rorschach Security: Cybersecurity expert and incident responder
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Sherlock Report: Scientist, Researcher and writing support
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Work Force: Business AI for Japan
System Prompts
Released under the MIT License. You may use, copy, modify, sell, and distribute for any purpose, including commercial use.
Character IP Reservation (All Rights Reserved)
This repository does not grant any rights to use the author's original characters or their identifying elements (e.g., names, personas, stories, settings). Any such use is prohibited without prior written permission from the author.
Sources & Attributions
Some prompts include short quotations or adapted structures derived from publicly available works (e.g., academic papers, documentation, notable quotations). Copyright in those works remains with the original authors/publishers. Please follow the original licenses/terms and provide attribution where required.