Urin, Ranse wo Kakeru: Iden Afumi no Umi

The year 1550. The Ashikaga clan ostracizes the Miyoshi clan, and this is also the year where the Muromachi Shogunate begins to crumble. In a small territory in Omi, the next clan head, Takewakamaru (age 2) is actually a reincarnated history buff from 21st century Japan. With the death of his father, Harutsuna, the situation takes a swift turn. His uncle is appointed as the next head and Takewakamaru is sent to live as a powerless, poor noble. However, he refuses to yield. Even without authority, with his wisdom he will make his name be heard in these turbulent times. The heretic nobleman shall soar through these turbulent times. The curtain raises in the comic version of the Sengoku era survival manga!

(Source: Manga Mirai)