1. buying clothings directly from the store is bad. most of the time you can get them for lower than 75cp in events when they pop up. keep on the lookout for them in treasure of the sage. you can get them there at a discount.

2. for convoys, i'm not sure but i think you need to be in the top 50 ranking for unmerged or top 100 ranking for merged. to get the extra SS convoy.

3. i'm F2P and my personal rule for getting event ninjas is to get the guaranteed fragments instead of relying on RNG. for example for the current event he is in, wheel of fortune, i would only spend on it if i can guarantee myself getting 1st in the wheel of fortune rankings. that way, even if i spend my cp on it and not get shisui, at least i would still get the gold tool essence for being 1st.

hope it helps :)

2. Im 1st at rank battle / rank power and still can.t do x2 missions

Thank you for ansywers mate

unmerged servers don't have extra SS convoy !!