One of my favorite characters, Aquilo the sea dragon was neglected and only mentioned a little like an afterthought with no proper resolution about the relationship between her and Theodore. Even the debts that Theodore owes her was unpaid.
Even Gluttony that helped Theodore was thrown out like a thrash after he reaped all the benefits from it. Book eating magician? Yeah after he ate Gluttony, he banished him like a leftover stuck to his teeth. Gluttony was better off not meeting a traitor like him. In other words, change the MC.
Xiao Muxue want to stay the night at his house after he save her. If it was me I'll be cautious of a violent guy that beat people, extorts and act like he is a hero of justice afterwards. She met him for the 1st time for GOD SAKE and her uncle is beaten black and blue and she barely cares.