|This article is about a/an transformation device in Madan Senki Ryukendo.|
ZanRyuJin is one of the three Madan Ryu, and also Koichi Shiranami's partner that doubles as transformation device and primary weapon.
Zanryujin is initially the previous Ryujinou that battles Daimaou Grenghost along with the previous Ryukendo and Ryugunou. However because at that time, the previous Ryukendo was the only Madan Warrior that can utilize Ultimate form, he was not strong enough to slain the Daimaou. Thus, the three Madan Warriors combined with the dragons of light to seal Daimaou into Egg form. Their souls later become the new Madan Cores that creates the Madan Ryu to help the next Generation of Madan Warriors.
Zanryujin core, along with the two other Madan Cores are initially was being researched by Koichi's parents in England under the supervision of Amachi. However, the sudden interference by Bloody almost resulting in their destruction, which could destroy the whole country. Koichi parents decide to sacrifice themselves to contain the magical explosion, thus saving the Madan Cores in process. Koichi, despite being saved by Amachi from the explosion, ended up hating both Amachi and SHOT since he think that they are the ones responsible on his parents untimely demise, unaware about the Jamanga interference. Thus he took Zanryujin core and at one point, destroying the England Power Spot.
Unlike the two other Madan Ryu, Zanryujin supports both Close-range (in Axe mode) and Long-range (in Bow mode) method of fighting. And it didn't receive any power up until the final battle with Grenghost.
Zanryujin, along with Gekiryuken and Gouryugun finally sealed for good after Daimaou Grenghost demise, in order to save Akebono city from exploding because of a Power Spot.