At the training trip inn, my senior and I stocked up on alcohol and went to the female colleague's room for a drinking party. While enjoying light-hearted conversations about company gripes and love stories, the senior was seriously hitting on female colleague A-chan! And without paying any attention to us, they went to the next room separated by a sliding door. Left behind, B-chan and I, while peeking at the romantic affair between the senior and A-chan, became excited...