戦前戦中に建設され、その後は封鎖された広大な地下空間。
メインの出入り口以外、その殆どはフェンスや鉄板で大雑把に塞いだだけとなっている。
それらは定期的に交換こそされてはいるものの、侵入を試みる者達を足止めするには如何せん非力すぎた。

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怪物騒ぎを聞きつけ、肝試しにと入り込んだ地下道。
一応は整備されているらしく、疎らではあるが電灯が灯っている。
かなり深くまで入り込んだが、期待した怪物もいなければ政府の極秘施設もない。
それどころかねずみやゴキブリすらもいない。
湿気とカビ臭さが増すばかりで、そろそろ引き上げようと振り返ったその時・・・

A vast underground space, built before and during the war but then subsequently sealed off.
Aside from the main entrance it is almost entirely blocked off with fencing and steel plating.
Though these barriers are replaced at regular intervals, it does no good at stopping those seeking to trespass.

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Hearing about the monstrous disturbance from the other day, they entered the underground tunnel as a test of courage.
It seems at least somewhat maintained and while sparse there is some lighting.
Though they've made it quite far in, they haven't found the monsters or secret government facility they were hoping for.
Not even rats or cockroaches.
The humidity and stench of mold keep intensifying, and just as they turn around to head back out...