not tryna hate gg for 100k but... you can't be a f2p lmao as the the max coupons you can make is 142,350 ish assuming your server was created 3 years ago and you made 130 cpns through 2convoys/1plunder everyday for 1095 days... maybe the +40 cpns from summons and level up/events etc can take you 150k+ only it wouldn't be possible because

1) your server wasn't created 3 years ago maybe around 2.5 so you're total coupons obtainable is drastically lowered

2) before merge, convoys would allow you to only do 1 plunder and 1 convoy so you'd be making >130 coupons a day

3) you haven't been online every single day since the start of your server surely...

4) coupons were harder to get on versions 1-4.0

5) you have edo minato and 4th hokage minato + a hell of a lot of meta ninjas that can only be obtained by spending a lot of coupons

and this is just mere speculation but if it was true then please tell us how you were able to do it