| October 2019 |
| 02/10/19 | The alliance DeepBlue was founded. |
| Founding members::  ななと, maebara and コンパス. |
|  The alliance reaches a population more than 100. |
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| 03/10/19 | Joining of:abyssi. |
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| 10/10/19 | Joining of:aiko. |
| Leaving of:aiko. |
| The alliance reaches a population more than 1,000. |
| November 2019 |
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| 01/11/19 | Joining of:ちくわ. |
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| 02/11/19 | The alliance reaches a population more than 5,000. |
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| 08/11/19 | Joining of:Bell and ぱんちゃん. |
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| 09/11/19 | Joining of:ぷるたぶ. |
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| 13/11/19 | Deletion of:ちくわ. |
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| 19/11/19 | The alliance reaches a population more than 10,000. |
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| 22/11/19 | Joining of:emergence. |
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| 24/11/19 | Joining of:ひいちゃん. |
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| 26/11/19 | Leaving of:ひいちゃん. |
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| 28/11/19 | Joining of:ホーリー. |
| December 2019 |
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| 01/12/19 | Joining of:ひろひと. |
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| 04/12/19 | Joining of:のりのみや. |
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| 05/12/19 | Deletion of:maebara. |
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| 06/12/19 | Deletion of:ななと. |
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| 07/12/19 | Leaving of:abyssi and Bell. |
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| 08/12/19 | Leaving of:ぱんちゃん. |
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| 13/12/19 | Leaving of:ぷるたぶ. |
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| 26/12/19 | Deletion of:のりのみや. |
| January 2020 |
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| 16/01/20 | Deletion of:emergence. |
| February 2020 |
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| 01/02/20 | Deletion of:ひろひと. |