Talk:Upgrades/@comment-14.192.210.242-20160518055128/@comment-26501688-20160518072349

How to obtain "Letter Set", "Training Garb" and "Traveling Tools" ^
 * First clear rewards for new stages
 * Monthly Missions (to be implemented)
 * These are different from the Monthly Missions implemented on 16/05/17.
 * Rewards from events.

Copied from this page :) The missions are not implmented yet so nobody knows for now.