Itsunori fell head over heels for his company colleague, Kitaoka Karin, at the job offer ceremony and aggressively pursued her. Soon after, the two started dating. After joining the company, they ended up working in different departments. Karin, who works in the sales department, often attends drinking parties and social gatherings, causing Itsunori to worry, 'Is she cheating? Is she getting drunk and being sexually harassed?' This worry increases. As a result, Itsunori awakens the NTR attribute. I want to have my beloved girlfriend taken by another man! Unable to suppress that twisted love, Itsunori decides to have her taken by a junior at university...
