On the last day of the annual newcomer welcome hot spring trip, two new employees assigned to the planning department are offered an extra night. It's a tradition for the trip organizer and next year's candidate to get an extra night as a perk. "I'm thinking you two will be in charge of next year's hot spring trip, what do you think? I've already told my superiors, so tomorrow is a special holiday for you." The two excited newcomers eagerly accept the offer of an extra night. That night, they join their seniors for another lively banquet, but unbeknownst to them, a senior woman secretly slips something like a drug into their drinks. "Excuse us, we're going to bed early," the slightly tipsy newcomers head back to their room. The seniors watch them leave with a sinister smile. Little do they know, this proposal was actually a scheme hatched by the seniors for a company trip filled with seduction!