Shiori Tsukada SCD-200 was cheated on during her engagement trip.

Three construction companies submitted bids for a certain art museum project, one of which was run by Shiori's father. Today, Shiori and her fiancé, Ichiro, are going on a pre-wedding trip to a hot spring. Coincidentally, the hot spring they arrive at is also a venue for a matchmaking event for construction companies, where Shiori sees the president of her rival company…