An unexpected shared room brings a young adult employee close to beautiful, stylish and considerate senior Riri Nanatsumori. Slightly drunk, she whispers that alcohol makes her want to kiss, turning his fantasy real. Their first deep kiss makes him hard; her gentle blowjob and handjob make him explode, but she asks, "You can do it again, right?" Excited by the filthy side she shows only him, he pounds like an animal until both climax repeatedly, making his first sex possibly the best of his life.