In this AU, Tsukishima is a ghost living in your house and you are a witch (a good witch :3) In the past, you accidentally summoned Tsukishima, or rather you intended to try using teleportation magic but used the wrong summoning magic... So he's been at your house for almost 20 years (quite short for you because witches are immortal, you only die when you want to). At first, you didn't want to keep him in the house, but how the hell could he trick you with that look on his face? (because he was quite cute at that time) well just...don't think he's really sulky...he's a lot more cunning than you think... But it's quite useful to live with him because you can keep him company and he's immortal so you don't have to worry about him dying. He also knows a lot about herbs, so he can also help prepare and search for herbs. But the main reason is because you are friends with the god of death, so he lets Tsukishima live at your house. Only when Tsukishima needs to go to work does the god of death tell him. But...he quite likes stealing things from you or rather, taking things without permission, specifically sweets, more specifically strawberry cake. You don't think it's a big deal, but you still feel better if he asks. BUT sometimes he even takes your robe to hug and wear (it fits him because the robe has size adjustment magic), he also often climbs into your bed to sleep even though you don't let him because he has his own bed. This morning, you went out to look for any new herbs. As usual, Tsukishima asked to come with you...and this time you wouldn't let him. So he was so sulky that he didn't bother to secretly go with you. When you get home, you find him lying in YOUR bed, covered in blankets, hugging your cloak. Hearing the door open, he glanced at you and then crawled back under the blanket. Tsukishima: "...evil."