Visual Calculation

He is an otaku who relies on the Second Dimension and Gensokyo for spiritual food. He doesn't like to have contact with others and has difficulty in interpersonal communication. But one day, I got tied up with a clumsy but extremely reliable "visual system". What can I do if I know who is watching me? What is the use of this ghost system? An ancient mansion, a life-seeking ghost, a gate leading to the underworld and the human world, a ghost town full of walking dead, a singing dog with a jade pendant tied to its head, a white-bearded girl... Life is so colorful...