Sex Leveling 3 ~Bijin Shachou to Dungeon Tansaku ni Ittara Zenmetsu shisou ni Natta node

Yuu is called out by his company president, Shiratori Kanane, who is also his senior from college. She wants to explore a dungeon to test equipment for her new brand. Yuu, worried about her lack of athletic ability, insists on accompanying her. They are joined by Reika and Rui, two adventurers Yuu has been partying with. In the dungeon, Kanane easily defeats a goblin with a powerful weapon, but Yuu's new "Door Perception" skill leads them to a hidden room. Kanane excitedly rushes in, triggering a trap that injures Yuu. Rui heals him, but scolds Kanane for her carelessness. The party faces a powerful monster in the dungeon. Reika and Rui struggle against it, but Kanane steps up to fight, using her 'Crimson Mace' to defeat the beast. They find a gem, but when Rui touches it, she is cursed and transformed into a succubus-like creature. Reika tries to fight the transformed Rui but is overpowered. Yuu and Kanane escape and find a merchant's shop using Yuu's 'Door Perception' skill. Realizing they need more power to save their friends, Yuu asks Kanane to have sex with him to activate his 'Sex Leveling' skill, and she agrees. Rui, in her succubus form, dominates Reika, forcing her into submission through intense sexual acts. Meanwhile, Yuu and Shiratori Kanane engage in sexual intercourse at an inn to level up and acquire new skills. Yuu discovers that his 'Sex Leveling' skill has leveled up, allowing him to awaken higher-tier skills based on his partner's excitement and pleasure during climax. He successfully awakens the 'Grand Magus' skill, significantly boosting magic power, and resolves to continue having sex with Kanane to gain more skills to defeat Rui. Yuu and Kanane engage in sexual intercourse, which levels up Yuu's skills. They then return to the dungeon to rescue Reika and Rui. Kanane uses her newly acquired magic to dispel the monster transformation curse on Reika and Rui. Later, Kanane invites Yuu to a hotel to test his skills as her assistant, leading to another sexual encounter. This page is a credits page for a scanlation group, featuring an illustration of a blue-haired character.