I don't trust aker either, bro decides to go against your rule without discussing with you about the coup and then dies trying to make it up to the MC.
Same applies to other routes.
The only ones I trust atm is Elin, Lia, Isis and Aurora.
"oMg wHy IsIs sHe a BAcKsTaBBeR" Not really, Isis has made it clear what she wants which is the restoration of the empire. Plus has made the line in the sand regarding lovers, they are okay but bastards that can threaten her children is a no. Plus she has shown that she will not make any moves without the MC's approval.
Seraphina is a trust her yes, trust her no situation. She says that she will side with the MC any time any day, BUT actions speak louder than words especially since the elves continue the conflict in the west and kidnapping MC's bastards