Shin Nobunaga Koki-Nobunaga-kun and I ~ (Volume 1-8 Volume)

In 2105, an urban legend whispers that a certain Sengoku otaku scientist undertook a forbidden experiment to find out who would be the strongest if all the famous warlords were born all at once.
Fifteen years later, Miyabi Kusakabe enrolled at Ginkgo High School, where 34 classmates with names and characters that resembled warlords of the Sengoku period ended up!
Shingen Takeda, Kenshin Uesugi, Masamune Date, Hideyoshi Hashiba... Nobunaga Oda alone is at his own pace. Even the delinquents underestimate him, saying,"He's just an idiot,"but...!