Yang Yan is useful too; in the plan, she's meant to be the backup Substitute Death in case of accidents. No matter who eventually goes to the office area, she'll be taken along.
Of course, she herself doesn't know any of this, and no one told her. Chen Nang and Munan also haven't spoken of it plainly.
If tonight passes without incident, that's naturally best. No one wants to see a teammate die right before their eyes, especially in missions with requirements for the survival count.
If an accident occurs, whether it's Chen Nang or Munan, they'd try to save people immediately. If they can't, there's nothing they can do; such is the fate of a rookie.
Yang Yan also voluntarily asked to join them, so this can't be blamed on them. Moreover, even staying in the office doesn't guarantee Yang Yan's survival, which she knows better than anyone.
"Scratch."
"Scratch."
