Frozen Heart [Kamisato Ayato X reader]

Born of warm Sumeru air and Inazuma rain combining
Her icy force, both foul and fair, has a frozen heart worth mining
Cut through the heart, cold and clear
Strike for love and strike for fear
There's beauty and there's danger here
Split the ice apart, beware her frozen heart
-Frozen Heart (Frozen)

(Previously titled Our Secret)

In which you are the second born in the Tsuki clan. Your mother decided to close off all interactions that people have with the clan when you were at the young age of five because of some...family issues. You are the best daughter anyone could ask for. Listening to your mother and doing everything you're expected to do as a noble lady. Now that your brother is of age, he will become the leader of the clan. Because your clan is in the light once again, your mother wishes to marry you off to another noble family to show that the Tsuki clan still has the same strength, stability, and power as they did before the death of your father. As much as you want to make your mother proud, a constant running into with the Yashiro Commissioner causes you to rethink what you want in life. Still seeking answers for what happened to your father and clarity about what path you should follow, will the two realize what their lives hold or will they have to travel to distant lands to find what they are looking for?

(This is like my first book that I am kinda sorta taking seriously so please be patient and understand that there will be a lot of spelling errors and grammar mistakes)