Murder at Shijinso (2019)

Every student is encouraged to join an extracurricular club and this one joins the university's Mystery Club.The club has a couple of veterans, but the real thing - an actual detective - is also in their midst.The club goes on an outing in the wilds of nature and on a mountain. They feel they have done the right things and taken the correct precaution, but when daylight comes they are confronted with the reality that a murder has occurred.