A former Waseda University student sentenced to 14 years in prison for being the ringleader in the gang rapes of two female college students has appealed his sentence to the Tokyo High Court, his lawyer said Wednesday.

Shinichiro Wada, 30, who set up the event club Super Free, was handed the sentence Nov. 2 by the Tokyo District Court.

He was found guilty of raping a university student with other club members at a party the group hosted in May last year and of raping another student in December 2001.

The 13 others involved in the rapes received prison sentences of up to 10 years. Three of them have appealed.