We will perform an update on next Monday, 2018/07/02. The update is expected to last up to a maximum of 5 hours. Start time: 06:00 UTC, 2018/07/02 End time: 11:00 UTC, 2018/07/02 Update contents: 1. A new weekly event: "Tier Competition" is online. It provides great rewards including new rare items! 2. New rare item: Booster, which can accelerate rooms and technology upgrading! 3. New rare item: Experience Book, which can be used to quickly upgrade a target staff member! Please leave game in advance to avoid data loss, thank you!