Okay....guess I've thrown out enough advice so should take a bit of my own medicine Here be the query for Aisuru.
Dear [Agent Name],
At the age of ten, Sakura Takeshi was handed a prolonged death sentence at the hands of a maniac with a knife. Now eighteen and in her final year of high school, she is also in her final year of life. After years of pushing potential friends away so no one will be left mourning when she dies, her loneliness and a growing fear of dying alone leave her longing for more.
As if in answer to her unspoken prayer, a wounded demon prince named Kazuki appears in her garden on a cold, rainy night. His younger brother turned against him and attacked him near their castle, though Kazuki doesn't know what caused Yuji's anger. All he knows is that he has no desire to fight, so living with Sakura in the human realm seems the ideal way to avoid further conflict until their father returns to sort it out.
Through their growing friendship, Sakura finds herself learning to live again, dropping the cold, distant mask she'd worn for so long. Kazuki wants to save her life, but even demon magic seems incapable of curing her. And with his murderous brother still out there, Sakura's failing organs might not be the only threat to her life.
Set in Hokkaidō, Japan, AISURU, TO LOVE is a 60,000 word young adult paranormal romance.
Thank for your time and consideration,