Battle Spirits: Brave
<p>Dan now desires more exciting battles and stronger opponents. Thus it is that when Maru appears before him, offering the two, Dan leapt at the chance.</p><p>He is transported into the future, a time when Earth is threatened by demons from another dimension. Now, the fate of all humanity rests on Dan's shoulders. The price of failure is a re-set of Earth's entire timeline.</p><p>(Source: AniDB)</p>
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