Chiba's hobbies include computer games and online communications.
When she married Tetsuhito Kirihara in 1998, her legal name became . However, she continues to be known by either her maiden name or "Chibarei" in business and other public contexts. Since her marriage and the birth of a son in 1999, Chiba has adopted a more mature public persona. She is now active as a certified yoga instructor, teaching yoga classes and issuing a series of instructional books and videos. She also continues to pose for publications such as Weekly Playboy. Chiba is also the public face of the corporation Cherrybabe, Inc.