The Prison Planet Saga (監獄惑星編 Kangoku Wakusei Hen, lit. "Prison Planet Arc") is the fourth original saga in Dragon Ball Heroes, as well as the first saga of Super Dragon Ball Heroes: Universe Mission!!.
It is set after the Universe Survival Saga of Dragon Ball Super and the Dark King Mechikabura Saga of Super Dragon Ball Heroes.[1] It, along with the rest of Universe Mission, is a continuation of Dragon Ball Super.[2]
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