| Achievement Category | Agent Trust |
| Description | Play Bizarre Brigade and survive more than 15 waves with any Agent in Quality Time mode. |
Until the Nightmare’s End
| Achievement Category | Agent Trust |
| Description | Play Bizarre Brigade and survive more than 15 waves with any Agent in Quality Time mode. |
idk about Promeia synergy, but i plan to use her with Nangong Yu (or Vivian sometimes) and Yuzuha.