Aniyome

Takashi has always lived in the shadow of his older brother, Satoshi, who is smarter, more athletic, and more successful. Despite this, Takashi never resented him, especially after Satoshi took him in following their parents' death. But everything changes when Satoshi marries Miwa, the woman Takashi secretly loves. Now, forced to see them together every day, Takashi's jealousy begins to fester.

As his frustration grows, Takashi's voluptuous college professor notices his potential and decides to take him under her wing. Through hands-on sexual tutoring, she aims to transform him into a ladies' man who can finally outshine his brother.