hey guys,I've been planning on a new fic but I really need help!
It's about a boy who is in mental hospital for murdering his family in their sleep,he would stay in the mental hospital until he would reach the age 18 so they could transfer him to the jail,and they had just a year till then.there's a doctor who wants to help him,and a boy with a lot of secrets.
I imagined the boy to be sehun but I'm not sure that he'll fit the character.so please help me and suggest for these characters T.T

Thank you <3

here is some parts I've written but it's still unedited and aweful :(

“how are you feeling today?”

The doctor asked in his usual gentle voice,this one was a young doctor with a warm smile and gentle voice,he wasn’t scary at all,he wasn’t like the other doctors who didn’t even care as long as he took his medicines on time,but still he didn’t want to talk.he had his face buried in his pillow not moving an inch.

The doctor sighed and put down the clipboard on the foot of the bed and ran a hand through his perfectly styled hair motioning for the nurse to leave them alone.

The young woman hesitated,glancing between the doctor and patient but left the room eventually.

“I’m not here just to give you drugs so you can sleep all the time,I’m here to talk.”

Today was exactly the day that they brought him here,2 years ago.after the court admitted his mental disability for murdering his family in their sleep.

The boy kept quiet for 2 years,he even refused to defend himself in the court and he was admitted guilty for killing his parents and his younger brother.he would stay in the mental hospital until he would reach the age 18 so they could transfer him to the jail,and they had just a year till then.

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He knew this young doctor for 2 years,how could he not?

He was the only one who had the guts to approach him and talk to him without any signs of fear or disgust on his face.

He came here -to the mental hospital- as a volunteer, 2 years ago. he could still remember him clearly.he was the first person who ever bothered to talk to him.he never answered,he never even showed any signs of interest in the young male’s words,but he never gave up on him or stopped coming to his room for one day,never.

Every morning the first thing he saw was the young volunteer greeting him with a tray in his hands.

He would even pass some delicious snacks under his pillow for him to eat,

“ hospital’s food is crap,so here” he would say and the pass the snacks under his pillow with a warm smile.

sehun never ate those but he would keep them in his little closet and sometimes he would accidentally leave them on his side table so when the elder man came to check on him in the afternoon,tired and hungry because he didn’t have the time to eat,he could ate the snacks gratefully.