The Secret Garden

Tsuini sono shoutai ga! Hanazono Yuriko sain-kai de dai pinchi!

After being put into a situation by his boss Ichiro has to arrange for Hanazono Yuriko to attend a festival and sign autographs. Since the identity of Hanazono Yuirko is a women the brothers and Ichiro decide Tsukiyama should pose as the famous author at the festival.