My Eyes Are Clear! ~Unifying the Realm with a Game Console in Hand!~

The Takeda Clan. A warring states daimyo who led one of the most powerful armies of the Sengoku period, unparalleled in its strength, and walked alongside many formidable warriors. In the late Heian period, they were the chief of the samurai class alongside Minamoto no Yoritomo, who established the Kamakura shogunate, and they expanded their territories one after another. However, they were defeated by political schemes, and many of their clan members were purged and reduced to mere retainers. Furthermore, they became merely the guardian of a single province under the Ashikaga clan of the Muromachi shogunate. Once close to ruling all of Japan—the Takeda clan. By the late Muromachi period, they expanded their territories once again as in days past, becoming a great daimyo capable of aiming for dominion over all Japan. Yet they were destroyed by Oda Nobunaga, the hegemon of the time, and vanished from the center stage of history in an instant... One day, a young man who loves the Takeda clan dearly suddenly time-slips into the Sengoku period. Is this one of those common reincarnation stories? Or could it be some kind of supernatural abduction? No, such things don't matter. In any case, he will make the Takeda clan take over Japan! A new history of Japan woven by a single young man now begins.