結界発見　地図から五芒星を発見しよう

Summon a "pentagram" on the map with one tap! A mysterious pentagram appears as if it jumped out of an ancient magic book, centered on the point you clicked. Find hidden power spots.

--This is not a suspicious app.
The core of this app is purely mathematical. This article is an attempt to theoretically verify that if there are a large number of buildings, it is almost certain that a pentagram can be formed at any point.
(For more information, see: [https://hothukurou.com/blog/post-4430]).

You can search for pentagrams not only at shrines and temples, but also at convenience stores and supermarkets. Taking a walk or jogging around each vertex will improve your physical and mental health.