| January 2017 | ||
| 09/01/17 | The alliance COS was founded. | |
Founding members::  Kokuei and junior. | ||
 The alliance reaches a population more than 100. | ||
| 19/01/17 | Joining of:thunderman. | |
| 21/01/17 | Deletion of:thunderman. | |
| February 2017 | ||
| 25/02/17 | The alliance reaches a population more than 1,000. | |
| March 2017 | ||
| 14/03/17 | Leaving of:Kokuei. | |
| 16/03/17 | Deletion of:junior. | |
| The alliance COS was canceled. | ||