| When | User | Flag Type | Description |
|---|---|---|---|
| 2010-10-09 22:18:06 | Ceram88 | Well Constructed | |
| 2013-06-03 03:47:11 | Matrok | Well Constructed | |
| 2013-09-02 11:41:51 | SoDesuKa | Well Constructed | |
| 2016-05-24 11:28:22 | 棋幻旋律 | Well Constructed | |
| 2019-06-25 16:52:11 | Sekisc2 | Well Constructed |