If It's for My Daughter, I'd Even Defeat If It's for My Daughter, I'd Even Defeat a Demon Lord: Volume 4 (Light Novel): Volume 4, Book 4, (Paperback)

"I've never thought of you as a replacement for my father."
After Latina tells him about her real feelings on the night of the Ahmar festival, Dale is driven into a deep depression by his beloved daughter's "rebellious phase." It takes a talk with his "big bro" Kenneth for him to see what her words really mean... but how will he respond?
To make matters even more complicated, Latina receives a confession of love from Rudolph, her childhood friend. Love is hard, but this is getting out of hand!
Whatever happens, though, one thing is sure: the relationship between guardian and adoptive daughter is going to change in a big way, and there's no turning back.