Saiminjutsu 4

Ever since the loss of his parents at a young age, the protagonist has been living with his two older sisters. He had a good relationship with his childhood friends and his classmates, and lived a fairly happy life, though always fearful of losing that happiness. But then, abusing the power of "hypnosis" which he had been taught, the protagonist's life spun out of control...
(translated from the official site)