Those people are probably either paying or have known exactly what to do from day one. Wish i had known that farming the 1-3 map an onwards was the most effective method to get tons of stuff. Currently at 6-6 or something and everything costs a damn 7 stamina per day. Half of the time i get bad luck and do not manage the 10 chance daily. So while this event is up i am going to spam the heck out of it because it's only 3 stamina!
...also Clit-chan lured me into feeding her a lot of stuff.
Edit: And she's STILL luring me. I want that damn SR card from her -_-