Kasumi Hanazuki <kasumi at rollingapple dot net>

• Diary (in Japanese)
• SNS/IM:
  • GitHub: hanazuki
  • Twitter: k_hanazuki
  • Steam: hanazuki
  • Google+: +KasumiHanazuki
• Affiliations:
  • KMC
  • ACM-ICPC Japan Alumni Group