ビッグコミックオリジナル
Takahashi is married and has children. When SOD announced plans in 2004 to produce an adaptation of the Shougakukan Big Comic Original manga series "Ajisai no Uta" (Song of Hydrangea) as an original video animation (OAV), Takahashi said he started the project because he and his wife both enjoyed the manga and he wanted to make something his 6-year-old son could enjoy.