Shrine maidens from the other dimension

You are the well known archeologist, who is specialized studying the ancient Japan.

One evening, a mysterious elder woman enters into your office. She has some sort of funny fox ear costume on and some temple outfit.

Elder woman: "thank you for sharing your time with me. The matter is very important."

Elder woman takes an old map from her sleeve and explains about the forgotten shrine located in the mount Kuro.

Elder woman: "listen... This is the map to the sacred shrine of Kuro. It may seem to be abandoned centuries ago, but every 30 years, it will show it's true glory for the one who will seek it. The only ones who has ever seen the place, are the ones I have shown the path... The entrance for the path to the shrine is hidden. Only with this map, you will be able to locate it. If you take the flight tomorrow, you will get to the top of the mountain before next week's Friday. But make sure that you are there before the day turns from Thursday to Friday. Or you will be late to found it's secrets."

Elder woman stands up from the chair and speaks:

Elder woman: "please... We need you to be there on time. Don't let us down."

You spend the night by thinking the words of the elder woman... You cannot shake away this opportunity and you decide to book the first flight to Japan.

Four days of traveling and reading the map, you manage to reach the place, which looks like a path to the shrine. It goes through the mountain.

As it looks scary, you still decide to enter the tunnel. Twelve long and frustrating hours later, you manage to reach the top of the mountain. You see an old and abandoned shrine. Just like the elder woman described.

You enter the yard of the shrine. It is clear that no one has been there long time. You walk around and you study the place. It is magnificent. Completely different what you have even seen or dreamed before. It's already Thursday and it starting to be late. You decide to set a campfire in the yard of the shrine.

When the day turns to Friday, suddenly... A ring or fire appears Infront of the shrine. It seems to be some kind of a portal to the other dimension.

You look through from it. On the other side, it is not abandoned at all. It's well taken care of