Ark Academy was chosen as a model case for a school that incorporates different races. The teacher and Iris were intimate as usual, but due to carelessness, he injured his hand. To take care of the teacher, Iris decided to visit his home. "I'll be relying on you for a while starting today." The teacher, unable to resist the situation of being alone with Iris at home, tries to embrace her as usual. But the conscientious Iris prioritizes taking care of him and refuses his advances. The teacher is devastated by this unexpected rejection. However, for some reason, Iris starts to seduce him herself...? The teacher can't use his right hand due to his injury. Living together like a married couple, Iris, the elf princess, begins her devoted care, but "nighttime activities" are off-limits until he's fully recovered!? Is this situation "heaven" or "hell"?