"You know what you need? You need a party girl." Hồ Xuân Hương, an associate of the Port Mafia and university student, who is well-known for her spicy personality, decides to "make a project" out of the by-the-book and rather harsh Doppo Kunikida of the Armed Detective Agency. Through awkward conversations and multiple tourist attractions, the two fight their way out of a situation that may bring intentions to light. (Note: This is not really a Doppo x OC, but they are both featured characters in the story)