Hyouka Wang has arrived at the shared house Familia-a raunchy, dangerous battleground of love where plots, schemes, and seduction lurk around every corner threatening to trap the world's most elite spies. She's a cosplaying beauty, social media superstar...and a spy. She gets right to work, attempting to ensnare Hayato by dressing up as his beloved childhood heroine. But Seraphy won't go down without a fight and enters the fray with a cosplay of her own! This kicks off a shared-house Halloween cosplay competition, and Hayato has to take their measurements. With such sweet temptations laid before him, will he be able to maintain his composure...?