Koufuu

Sekiguchi Nadeshiko

Cyber Security • CTF • Web Development • Kali Linux Lover

Hokkaido, Japan
SecHack365 '26 Trainee
TeamHowls TeamHowls Founder
Tobitate! Study Abroad Initiative | 11th Cohort

About

I'm learning cybersecurity, CTFs, web development and low-level programming while based in Japan. Founding a voluntary association named 'TeamHowls', I'm also keen on creating a community where everyone is welcome to study together, regardless of their skill level. My dream is to become a red team opearator and contribute to the cybersecurity industry in Japan.

Career

2023
  • Hokkaido Programming Contest in Kikonai Town(2nd Place)
2025
  • Fuji Seminar 7th
  • Web Development Internship
  • Security Camp Mini (Online & Sapporo)
2026
  • Founder, TeamHowls
  • SecHack365 '26 Trainee
  • Tobitate! Study Abroad Initiative | 11th Cohort

Certificates

Fundamental Information Technology Engineer Examination
IELTS 7.0
Japanese Calligraphy Semi-Professional
Global Mathematics Certification Grade 2