シーズー
Furukawa owns a pet dog named , a Shih Tzu that was named after Asuma Shinohara of "Patlabor". His former pet was Ataru (あたる), which was named after Ataru Moroboshi of "Urusei Yatsura". Ataru died in 2008 at age fifteen and was also a Shih Tzu. Tribute pages were made for both pets.