How to get almost all characters from RtB (Road to Boruto) dlc, without buying it.

First of all, you need to earn 20 000 000 Ryo, but the game will let you have only 9 999 999 Ryo.
How to do it?
Well, the game will count only how much you earn.

First step: Earn 8-9 millions of Ryo (9 999 999 Ryo will be good).
You can do it by fighting in free battle and selling items in Collection

Second step: Go to Adventure mode, find bento shop.
Third step: Enter this shop.
That would be pretty easy Forth step: Buy everything and sell what you have bought.
You'll buy it at higher price, then sell it at lower price.
Five step: Repeat Forth step until unlocking some new characters.
Profit!! New characters will begin their unlocking, starting with Mitsuki

The last character will be Boruto (Final battle).

You had unlocked (!!) almost (!!) everyone (characters and costumes) from RtB (Road to Boruto) DLC.
These characters are fully playable.
Enjoy!