群青戦記 グンジョーセンキ

Seitoku High School in Shiga Prefecture is a powerhouse in sports. With dreams of the national championships at Koshien, the National Stadium, and Hanazono, its students shine as they chase the glory of competing on the national stage… until now. One afternoon after regular club activities, a crimson rain suddenly pours down, and the entire school is shrouded in mist. Strange, monstrous samurai attack the campus out of nowhere?! And looming just beyond the school grounds is… Azuchi Castle?! Has the entire school been transported back to the Sengoku period?! Far removed from the stage they’d dreamed of, the students must now adapt if they don’t want to die!! “Warlords vs. High School Athletes” — the battle begins!! (Source: MANGA MILLION)