This morning I decided to go for Kushina in the Great Plates Event. Her drop rate is great. I was getting her frags what seemed like every 10 keys I used.

By the time I recruited her I spent around 3,800 coupons for 61 Kushina frags, 18 Masked Man frags, 187 Oils, around 30 seal scrolls and around 30 medium refine runes. (Didn't pay attention to Shisui frags since I already have him.) To be honest, that's a great deal for what I spent. The oil gave me 1,577 power boost. If you're considering spending coupons in the Great Plates event, it's worth it if you don't already have Kushina. Just remember that last frag will put you on ice.

Anyone else have this experience?

Jib Edit: The chance to obtain items in all chance events is the same for everyone. There is no limit. Since it is based on chance though, items aren't always guaranteed to appear.