Jump Ultimate Stars/J-Space 06

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.

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.

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.