X-VENTURE THE GOLDEN AGE OF ADVENTURES:

A group of Adventures disappears right after reporting that they found gold in the Himalayas! The World Adventure Union sends a rescue mission, which includes the No.4 Adventurer, Azure Princess, who unexpectedly provides a clue to Lulu"s mysterious background! However, the rescue mission is attacked by snow apes! Will they meet the same fate as the vanished adventurers?