Ujizane's Ambition

A high school student is thrown into a world identical to the Sengoku period he knows, due to a certain invention. He is blessed with a good family background, excels in martial arts, is well-educated, and is a pro-level kickball player—he becomes Ujizane Imagawa and must navigate through this "similar Sengoku period" filled with formidable enemies such as Oda Nobunaga and Takeda Shingen. Can Ujizane survive? Even before that, when it comes to the Imagawa clan, there are only minor warlords, but can he really fight against the Oda and Takeda while leading such people? Isn't the story too dull in nature? With such thoughts in mind, the story begins. Ah, please be lenient with the update speed. I hope you will bear with me for the long haul.