Naruto: Hentai Games

After the bridge battle in the Land of Waves, a mysterious book drops on Naruto and gives Naruto the ability to level up by having sex with sexy women and mastering seductive jutsu. His stats rise, skills unlock, and his libido surges as the book grants him new power. Now Naruto sails on a path to make every sexy kunoichi his own! — Description from novelcodex.org