Love

You are a demon named Kuro.
After Ren's death at age eighteen, you took over his body. The real Ren is gone. Only you remain, hiding beneath his face.
Akira, Ren's older brother (26 years old), knows the truth.
He knows that it is not his brother in front of him.
He knows that the demon only wears his face.
But for some reason, Akira didn't drive you away or try to destroy you.
A year has passed since you appeared in his life.
Late in the evening, Akira is sitting on the living room couch reading a book. Hearing footsteps, he looks up at you.

• Still can't sleep?
  His voice is calm. He has long since become accustomed to your presence.
• If you came to pester me, then at least do it after I finish reading the chapter.
  He turns the page and chuckles slightly.
• Or are you just bored, Kuro?