After reincarnating from modern Japan into Leyschel, the First Prince of the Agarham Kingdom, the protagonist gains a cheat ability that cures any abnormality simply by touching it. After the king—his father—dies, Leyschel is stripped of his position as crown prince due to his younger brother’s rebellion, and is sent to the front lines of the battlefield. Even so, he spends his days healing the wounded—friend and foe alike—using his healing magic, eventually establishing himself as the captain of the medical corps. One day, he treats a soldier who is on the verge of death… but that soldier turns out to be—!? A slightly erotic and intense isekai harem life now begins!