Board Thread:Questions and Answers/@comment-36.77.78.238-20160801172443/@comment-26501688-20160805151900

Map 4 is too advanced for lv 10+ tantous. With or without KBC, they'd still get hit badly! Try grinding 1 and 2 for now.

If you want to take on the KBC, make sure the level difference between all swords is similar. To put it simply, difficulty of KBC battles is based on the highest levelled sword in your team. If you have five lv 10+ tantous and a lv 80 uchi, your tantous are a goner because the KBC that appears will be lv 80. Babysitting low-levelled swords with high-levelled swords is a very bad idea against KBC.

If you can't achieve a team where all members have similar levels, then just don't fight the KBC. You can exit the game when KBC appears.

PvPs and expeditions take too long to raise experience points in my opinion.