Duration: May 21st to June 9th
	Walkthrough:
	From May 21st to June 9th, heroes can talk with Stone King to draw Stone Roulette. There are 7 kinds of Stone Roulette which heroes can use Stone Ticket or CP(B) to draw.

| 
				 
					Cost 
			 | 
			
				 
					Reward 
			 | 
		
| 
				 
					100 CP(B) 
			 | 
			
				 
					50 CP(B), +3 Stone(B) Ticket or +3 Stone(B) Ticket*2 
			 | 
		
| 
				 
					300 CP(B) 
			 | 
			
				 
					150 CP(B), +4 Stone(B) Ticket or +4 Stone(B) Ticket*2 
			 | 
		
| 
				 
					900 CP(B) 
			 | 
			
				 
					450 CP(B), +5 Stone(B) Ticket or +5 Stone(B) Ticket*2 
			 | 
		
| 
				 
					+3 Stone(B) Ticket*3 
			 | 
			
				 
					150 CP(B), +4 Stone(B) Ticket or +4 Stone(B) Ticket*2 
			 | 
		
| 
				 
					+4 Stone(B) Ticket*3 
			 | 
			
				 
					450 CP(B), +5 Stone(B) Ticket or +5 Stone(B) Ticket*2 
			 | 
		
| 
				 
					+5 Stone(B) Ticket*3 
			 | 
			
				 
					1300 CP(B), +6 Stone(B) Ticket or +6 Stone(B) Ticket*2 
			 | 
		
| 
				 
					+6 Stone(B) Ticket*3 
			 | 
			
				 
					3500 CP(B), +7 Stone(B) Ticket or +8 Stone(B) Ticket*1 
			 | 
		
	Heroes can exchange +6,+7 and +8 Stone Ticket to +6 Stone(B),+7 Stone(B) and +8 Stone(B).
                  
                