sakura event is the best way to get cheap ninjas with out getting any power boost or free ninjas.. but if they will kept 20cp for each foodsacks.. no 1 will buy it.. you get 10pcs of foodsacks.. and try to redeem it by getting advance refine runes.. you will get 5 refine runes only for 10pcs of foodsacks in 20cp each.. hahaah.. like tf.. double price from the normal shop.. hahaha.. better buy in normal shop than to spin in that 20cp each foodsacks.. hahha