Blue Zone

(from ebookjapan):
Jun, a young man who grew up as an orphan, one day, suddenly found himself with a huge inheritance and his father's legacy to carry on. It was to research the supernatural world known as the "Blue Zone." To protect Jun from the clutches of the Blue Zone, his parents had him raised as an orphan. Under the guidance of the mansion's grandfather, Jun begins his research, but strange incidents start happening to him one after another. Souls, ectoplasm, psychic photography, and invaders from another dimension ....... Jun's battle between science and the supernatural begins!