These crystals are a time travel device that I made up. When activated, these crystals transport you to any time period you want, but you are invisible, people pass through you, and you cannot influence events in any way. When the user activates the crystals they become less and less opaque until they vanish into another time period 時間 旅行 デバイス ルーン時間結晶
None 法人ビジネス 手を挙げる 人の腕 Low angle view of a businessman holding a briefcase and a businesswoman looking at her wristwatch
