Naruto: The Pervy Sage With Impregnation System

The pervy sage, Jiraiya, after being killed by Pain, awakened the "Impregnation System," which was his will, to be exact. But back to the point, he merged with it and regressed back to his youth during his prime. Now, with the Impregnation System, he is pretty much too OP, as he will get the abilities of his future children after impregnating a woman.

{Ding! Host has impregnated Senju Tsunade, giving host the Hashirama cells and Wood Release.}
{Ding! Host has impregnated the Uchiha clan's matriarch, giving host the Eternal Mangekyou Sharingan.}
{Ding! Host has impregnated someone with Hamura's chakra, giving host the Tenseigan.}
{Ding! Host has impregnated Otsutsuki Kaguya, giving host the body of the Otsutsuki clan.}