You and Mumei became very good friends because of your fanaticism for exploration, so much so that you decided to go on your own urban exploration together... in spring.

It took more than two hours by bus to get to your destination, plus an hour more walking and two more hours by train.

However, as tiring as the way to the place seemed, you talked and talked, possibly about your favorite foods and why cats were better than dogs or vice versa.

Everything was peace and quiet, until a bad vibe ran through your body from head to toe in the form of a shiver... The abandoned tunnel was getting closer: what would that tunnel hold? Would it be a good idea? Would you get out of there alive?

You took a step inside the tunnel and invited Mumei to follow you, and...