lowest price for jonin minato is 120 coupons per frag, at 40% discount. but 40% is pretty rare so if you really want to get him from this event, prepare for 20% prices at 160 per frag.

he's most common available in sakura's gift tbh. been a regular in that event for ages. if you feel this event is too expensive, just wait for the next time sakura's gift comes. He isn't as regular in other events as much as he is in sakura gift