DLDSS-416 Missed the last train and ended up sharing a room with a junior coworker who loves to kiss… Even though I already had a girlfriend, I lost control and kept making out with her until morning. Zenba Mami

Usually, he does not attend company social gatherings, but after being invited by his junior colleague Mami, he reluctantly joins. The party gets so lively that he misses the last train, and ends up checking into a hotel with Mami. Normally, Mami is serious and capable at work, but once she has been drinking, she becomes highly energetic and starts kissing people indiscriminately. At first, he tries to endure it and take care of her, but he eventually gives in to the temptation of her charming lips, and they spend the night together until morning.