Sengoku Komachi Kuroutan: Noukou Giga

Teenage history buff Shizuko Ayanokoji is a student at a specialized agricultural high school. One day, just as she's walking home from school, she suddenly finds herself transported back in time to the Sengoku Period…and who then appears before her but warlord Oda Nobunaga himself?! Captured by Nobunaga's army, Shizuko immediately vows to prove her agricultural expertise to him, but can she really fulfill this promise?
(Source: emaqi)