SD Sengokuden is part of the SD Gundam franchise, a sub-franchise of the popular Gundam

Gundam

The is a metaseries of anime created by Sunrise studios that features giant robots called "Mobile Suits" ; usually the protagonist's MS will carry the name Gundam....

 anime

Anime

is the Japanese abbreviated pronunciation of "animation". The definition sometimes changes depending on the context. In English-speaking countries, the term most commonly refers to Japanese animated cartoons....

.

Set in the fictional land of Ark, SD Sengokuden re-imagines the mobile suits and mobile armors of the existing and more serious Gundam stories as super deformed

Super deformed

Super deformed or SD is a specific style of Japanese caricature where characters are drawn in an exaggerated way, typically small and chubby, with stubby limbs and oversized heads, to make them resemble small children...

 sentient samurai in a setting reminiscent of ancient Japan.

Recurring characters

Musha Gundam : Leader of Ark's noble warriors. Unlike his comrades he prefers to rely on his sword and glaive rather than fancy gimmicks. Resembles the RX-78-2 Gundam.
Musha Mk II : Fights with twin swords and can transform into an eagle form. Resembles the RX-178 Gundam Mk-II

RX-178 Gundam Mk-II

The RX-178 Gundam Mark-II is a fictional mobile suit from the Universal Century Gundam anime series. A collaborative design created by Kunio Okawara, Mamoru Nagano, and Kazumi Fujita, it is featured prominently as protagonist Kamille Bidan's mobile suit in the first half of Mobile Suit Zeta...

.
Musha Zeta : A famed horseman, he can combine with his steed into a powerful centaur. Resembles the MSZ-006 Zeta Gundam.
Musha Double Zeta : A budding inventor, he has created tank-like armour to use in battle. Resembles the MSZ-010 Double Zeta Gundam.
Musha Nu : Owns a powerful dragon spirit with which he can combine. Resembles the RX-93 Nu Gundam Double Fin Funnel Type.
Onmitsu : The best kept secret of the defenders, Onmitsu is a ninja specialising in covert missions. He uses various tricks to outwit his enemies.
Shogundam : A lord who is responsible for sending the defenders out on missions. Reports to the Dai-Shogun.
Zaku Brothers : Three brothers who have sworn allegiance to their evil lord. They parody the underlings most heroes must fight their way through to reach the main villain in shōnen

Shonen

The term refers to manga marketed to a male audience aged roughly 10 and up. The Kanji characters literally mean "few" and "year", respectively, where the characters generally mean "comic"...

 anime. Are infamous for being distracted by watermelons, upon the discovery of which they ignore everything else in order to cut it in half. In later works they appear to have made peace with their Gundam enemies and are now allies. Resemble the MS-05B Zaku I, MS-06F Zaku II and the AMX-011 Zaku III.

Character sub-groups

• Musha Gundams- The citizens of Ark, comparable in size to a human adolescent upon maturity. Their designs are commonly based on popular existing designs though some series use original designs which only draw on base Gundam elements.
• Dai-Shoguns- The most highest ranking individuals on the heroes side, Dai-Shoguns are often former low level heroes who experience and talent has seen them promoted. Their status is often reflected by highly detailed armour, which is balanced by the high level of power shown in even their most basic techniques.
• Mobile Mushas- Based on the classic idea of mobile suits in the main Gundam franchise, Mobile Mushas are gigantic robot warriors employed by certain factions. Their immense power is offset by their rarity; in various stories, rival groups have clashed for possession of a Mobile Musha. Typically villain characters do not employ them, instead opting to mutate themselves to giant size using a great power source.