Lord Tenjō was Bang Shishigami's former sensei and leader of Ikaruga before he was slain by Jin Kisaragi during the Ikaruga Civil War. This caused Bang to seek revenge on him. In one of Bang's endings in Story Mode, Valkenhayn R. Hellsing mentions that Lord Tenjō's son might still be alive. Bang heads to Ikaruga in his canon ending to find the answers he seeks.

He was also the former user of the Nox Nyctores Phoenix: Rettenjō, and passed it on to Bang before dying. In Chronophantasma, Relius Clover revealed that Tenjō was also aware of the Rettenjō's true power as an Anti-Nox weapon and could have used its true power to bring victory for Ikaruga over NOL. However, he also realized the greater calamity that would come if he used the Nox, so he instead did not use it and passed it on Bang, resulting his death at the hand of Jin Kisaragi and the defeat of the Ikaruga Federation forces in the war.

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