Ple-Sen
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Kanamiya is also an arbuser, honestly. She conquered Albus almost three centuries ago, then let everything slide and never kept an eye on the actions of other vassals, and now, when Albus legitimately needs guarantees and compensations, she says "you're either with us or against us" to someone who never even expressed a desire to be part of Tezoth. So there are different sorts of empires here.
The rusty one has only one chance to survive, but given the state of the counter, the probability of that isn't very high.
Dismantle Ona for spare parts and become a demon lord?