Requirements: the chests will be received by players level 15+
The main reward is the "Western Sun" villa (4, 800 coins, 3-5 energy, 3-5 Candies every 20 hours, size 7*7, can be placed anywhere).
Each chest can be opened for 9 Autumn keys.
 
There are 3 ways to get Keys:1. Complete the quests:I (2 keys)
Collect 11 Romantic Candles (Coffee house and Upgraded one)
Collect 15 Valentine’s Card (Stationery Shop and Upgraded one)
Collect 12 Paper lanterns (School and Valley School - 3 items each time)
 
II (2 keys)
Collect 33 Bouquets (Flower Kiosk and Upgraded one)
Collect 17 Garlands (Recreational cottage and Upgraded one)
Collect 7 Horticulturalist handbooks (Bookshop)
 
III (3 keys)
Collect 19 Lettuces (Wok cafe, Upgraded one)
Collect 27 Spring rolls (Bistro and Upgraded one)
Collect 33 Smoothies (Convenience store and Upgraded one)
 
IV (3 keys)
Collect 16 Diamonds (Mansion)
Collect 28 Ballroom Shoes (Shoe Shop and Upgraded one)
Ask friends for 7 Oil burners 
 
V (4 keys)
Collect 15 Amber earrings (Premium Cottage)
Collect 33 Love Letters (Colonial House and Upgraded one)
Collect 9 Daisies (Friend’s cities)
 
2. Collect profits from the following buildings:

The Subway Station - 1 key every 24 hoursThe Pumpkin Castle - 1 key every 12 hoursThe Center of Culture - 3-5 keys every 20 hoursGrand hotel{s} "Château Frontenac" - 3-5 keys every 24 hoursRockefeller Center{s} - 1-4 keys every 12 hoursArt Museum, Mexico: 3-5  keys  every 18 hours;"Melaka Straights" Mosque - 2-4 keys every 24 hours 

3. Use the sale offer!

Special offer

"Melaka Straights" Mosque: 5,100 coins, 2-4 energy, 3-5 candies, 2-4 Autumn keys during the Chests "Western Sun" villa event every 24 hours; + 80 Autumn Marathon points
Art Museum, Mexico: 3,800 coins, 2-4 energy, 3-5 candies, 3-5 Autumn keys during the Chests "Western Sun" villa event every 18 hours;
Center of Culture: 5,500 coins, 3-5 energy, 3-5 Autumn keys during the Chests "Western Sun" villa event every 20 hours;
Grand hotel "Château Frontenac": 4, 300 coins, 3-5 energy, 3-5 Autumn keys during the Chests "Western Sun" villa event every 24 hours;
Rockefeller Center: 2,300 coins, 1-3 energy, 1-4 Autumn keys during the Chests "Western Sun" villa event every 12 hours;