Hayakawa (早川) family name, Yoshikazu (佳克) first name
1949: Born on Jan 20th.
1962(c): becomes interested in SM through reading Kitan Club.
1968(c): ties a woman in a relationship for the first time.
1972: graduates from university after studying the erotic works of Georges Batailee and joins with Shobo Misaki to edit the publication "Erotica".
1973: "Erotica" ceases publication in March. Becomes Editor-in-chief of "Fantasy and Horror" (with editing adviser Hiroshi Aramata) until issue No. 11.
1974: Joins with Koaku Yukio and Tsukasa Shobo.
1980: Joins Million Publishing and becomes Editor-in-chief of S&M Sniper.
1983: In September, starts the Hige no kōyūroku series in S&M Sniper.
1984: Becomes managing editor of Million publishing.
1991: Inaugurates the Hige Salon collective through S&M Sniper. Edits for Soma Publications.
1996: Starts the NIFTY-Serve SM-related internet forum.
1999: Opens the Hige salon via the internet.
2000: Opens "Mugen on the web" internet sub-channels for SM enthusiasts.
2001: Opens Mugen SM Lounge in Roppongi in October.
2005: Attends Denki Akechi memorial service on September 6th with Oniroku Dan, Takasu Motojin and Denjiro Sakurada at Tokyo Kōsei Nenkin Kaikan.
2006: Soma disbands. Mugen SM Lounge closes.
2006: Revives Hige Salon at Queen Lounge, Shinjuku with Akemi Nakamura.
2009: Akemi Nakamura closes Queen Lounge, Shinjuku and moves to a new location.
2012: Hige Salon ends in December.
Long term public and private relationship with Ran Mitsuo.
Denki Akechi・Kenji Matsui・Takagi Saonushi・Mai Hana.