[Machine Translation] Ai is a secretary for a large company and too serious, but she has trouble being honest. However, she naturally opens up to Yuma, a man she meets at a bar, and spends the night with him. However, he turns out to be the sergeant of a rival company! The only condition for keeping the one-night stand a secret is that she becomes his fake fiancee... "I'll love you so much," she whispers to him sweetly, even though the relationship is a lie...