Board Thread:News and Announcements/@comment-26215551-20151113092230/@comment-26093926-20151118234622

2.96.204.5 wrote: What event will this guy be? I know that it's some sort of underground treasure chest

If it is, when is the event and when? Undergroung Treasure Chest - You clear 50 maps to obtain the new sword but you can go further to earn extra rewards

Recent Updates - Details of new content is always posted on this page. Next maintenance is 5 hours from now. I'm guessing the event will run for 3 weeks like Monoyoshi's.