Donut Grassland is the first stage ever in PPS. This stage is very easy to clear for newbies that just joined the game. Don't expect too much from it.
Rewards for normal:
Rank 1: 30 Friend Tickets, Rank 2: Premium Ticket, Rank 3: 1 Star Exp Stone (+360), Rank 4: Challenge Ticket, Rank 5: Premium Ticket