With the father, you can't literally blame him for not knowing anything. He volunteered himself to leave for the Frontier to protect his daughter and most likely could not send letter nor received any himself, or there could have been some interceptions where communication was impossible until in this second life of Rie, the letter made it to the father to finally allow him to come home.
I dont blame him at all im literally simp for him
⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄
Same owo he is such a hottie
Everyone has different opinions on this but I actually like this because she is just child that wants help her family, well grandpa can go to hell I don't care at all , I like second brother because he was the only one who saves her from the fire from her past life , for her father well that I can say I like pretty and handsome fathers ..
Literally then he said "good morning darling " I went good morning babe I lost so quickly ╥﹏╥ , and our ml is such cutie that needs to be protected from all bad things (⊙…⊙ )