恶毒后娘的亲儿子(穿书)

　　It's based on the manga “Issak” by Shinji Makari and DOUBLE-S, published by KODANSHA LTD. 　　Short synopsis: 1620: In the chaos of the Thirty Years’ War, 11-year-old orphan Zetta finds companionship in the mysterious Japanese samurai Issak, who fights on the side of the Protestants – carrying a dark secret with him…