I suspect Nene will also be helping out, at least in Underspace, until something is asked in the training that makes her go, "hey, wait just a minute, that sounds suspiciously like something I had to do under the heat of fire once."
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"You know how parents tell you everything's going to fine, but you know they're lying to make you feel better? Everything's going to be fine." - The Doctor
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"You know how parents tell you everything's going to fine, but you know they're lying to make you feel better? Everything's going to be fine." - The Doctor