D Episode 21: Grandmother! Enter Tenka Gotsurugi!

'''Grandmother! Enter Tenka Gotsurugi!''' is the 21st episode of Future Card Buddyfight Triple D, and the 135th episode of the series.

Synopsis
Gao must acquire 88 more wins to get himself back on track to the finals, but one swordsman will get in his way! In the meantime, Abygale and Gaito find a suspicious old lady while fighting through the tournament.