From StrategyWiki, the free strategy guide and walkthrough wiki

Houshin Engi is a manga series also known as Soul Hunter in North America. View Wikipedia article. This world will only become unlocked once you pay 400 purple gems on Ou Tenkun's evolution chart.

[edit] Mission One

1. Knock out Taikoubou. Doing this will unlock Taikoubou.
2. Knock out Taikoubou within a minute.
3. Knock out Taikoubou with a special attack.
4. Knock out Taikoubou with a support character.
5. Knock out Taikoubou within 40 seconds. Doing this will unlock Dakki.

[edit] Mission Two

1. Win the point battle. Doing this will unlock Sipuxiang.
2. Knock out an opponent with a special attack.
3. Get three points more than your opponents.
4. Get four points more than your opponents.
5. Get five points more than your opponents.