Ekmah

mental age develops not only with time but mostly with events. That's why people confronted to challenging and difficult situations mature faster, while people that are coddled will mature slower. In her mindscape there's absolutely nothing that would trigger an increase in maturity, and the structure of her brain wouldn't change as physical age would have done. So there's no reason to believe that her training in her mindscape would help her mature faster

she's just going to end up in his harem, it's so obvious

it's her mindscape, she shouldn't be aging I think

perhaps it's an alias for the void between universes? I can only hope xD

wasn't the cooldown 20sec ? With the upgrade taking 2sec it should be 18sec now

how?

Kakashi should be Minato here