After Tsuchimikado Motoharu left, Su Xiao drew the curtains and locked the door.
From the known clues, the Mortal Soul Code is in the hands of the Mokuhara Clan, a large group with direct ties to the Board of Directors within Academy City. The clan has over four thousand members.
The majority of these four thousand are non-combat researchers, with only a few hundred possessing combat strength, mostly members of the Hunting Dog Unit.
If he targets the Mokuhara Clan, Aleister is highly likely to interfere, but Su Xiao no longer cares. If he can't obtain the Mortal Soul Code, he's as good as dead. At this critical moment, would he still care about that upside-down man, Aleister?
