Sakura and the Christmas Picture Book

"Sakura and the Christmas Picture Book"（さくらとクリスマスの絵本）was released 12 December, 2019 until 9 January 2020 (28 days), and is the fourth event released for Happiness Memories. The event was Christmas themed and released Christmas room decorations, Happy Photos with artwork relating to the game-only story about Sakura and Akiho creating a Christmas picture book, and the "Rocket Beat" costume from Cardcaptor 1Sakura: Clear Card arc Opening #2 (Rocket Beat)

Happy Photos released in Gacha during this event can be equipped in the Event tab in the Happiness Memories tab. When equipped the photos provide a multiplier to coins received during challenges. The photos obtained by opening boxes with coins give no extra multiplier except for Rainbow cards (x2).

Event Story Release Timeline
Chapter 1: Event start - no points needed

Chapter 2: Event start - 1000 pt

Chapter 3: Event start - 2000 pt

Chapter 4: 12/16 13:00 JST - 3000 pt

Chapter 5: 12/16 13:00 JST - 5000 pt

Chapter 6: 12/20 13:00 JST - 7000 pt

Chapter 7: 12/20 13:00 JST - 9000 pt

Chapter 8: Event end (12/26 13:00 JST) - no points needed

Multiplier
Gold Christmas Event Card from Gacha: x2

Gold Christmas Event Card from Lotto Box: x1

Rainbow Christmas Event Card from Gacha: x7

Rainbow Christmas Event Card from Lotto Box: x2

Add +0.2 for each duplicate card.

Prizes
Items are distributed through 5 boxes with 180 prizes in each box. One pull from the box is 100 Coins, and 1000 coins can be used to pull 10 at a time.

All Boxes (including the extra box) contain the following items:

Each box contains the following unique items Extra-Extra Box: This box is revealed after the extra box is completed, and infinitely refreshes until the event is concluded.

Challenges
The event released 28 daily challenges that could be completed during the event. Completing these Challenges rewarded 70 coins.