Selling or foddering 6*s = 12000 bond crystals
5*s = 1000
4*s = 200
3*s = 10

4x3* equipment or 2x4* can be converted to 10 bond crystals through refinement, which doesn't provide exp or coins.

You can buy up to 20 Danchou Medals per month for a total of 15000 bond crystals. More medals are obtainable from the daily 100 DMM point/Nutaku gold gacha rolls. 1/roll

A Danchou Ticket(5*+) costs 100 Danchou Medals with the first one(now two) disconuted to 60 medals.

If you get a 5* from the ticket, you get 1/10 of the currency needed for a 6* of your choice.