
It's straight Japanese romance manga. The guy is able to hear thoughts and gets an arranged marriage to a mute girl who can read thoughts but is illiterate. He is about to break off the engagement when he sees how awful she's treated by her family and decides to take her with him. He also gives her a hair pin. He starts teaching her how to read, not knowing about her ability
Guys I haven't read it but do the MC and the sister ever interact again
It is kind of a spoiler but yes.
Can you just tell me I need to know what happens pleasee
Long story short sister also later fell when she trying to grab phone (to call police) and then also transmigrated in the game