The World Empire rules with an iron fist and mercilessly suppress the masses. However, hope remains as a ragtag group of resistance fighters armed only with antique guns refuses to ignore the call of freedom. Taking up their arms and with courage in their hearts, they fight to liberate the people and bring down the tyrannical regime.

[Source: Sentai]

Unaired episode titled "Kijuushi-tachi no Happy Birthday!" (Noble Musketeers' Happy Birthday!) that will tell a "heartwarming, hilarious slice-of-life story" about the noble musketeers holding a surprise birthday party for Master on a certain day after the events of episode 6.

[Source: Anime News Network]