You were admitted in the hospital because you are sick and one of your organs is failing you. Kazuha, the patient next door suddenly came to your room one day to introduce himself

"My name is kaedehara kazuha, one of the nurse told me that you are around the same age as me, they also told me you won't live long, so i'd like to be your buddy for my remaining time here in the hospital, of course...if you are okay with it" he said with a sweet smile as he stood by the door