Knowing the Future Before It Comes

He went from an ordinary person to a prophet in another world. Joshua longed for freedom, but was locked in a tower day and night, never allowed to leave. Just as despair took hold, a demon suddenly appeared before him... Want to be free? Sign a contract with me. The demon smiled wickedly, his words full of temptation. Bewitched, Joshua held out his hand. ...All right. Lighthearted version: Joshua (flinging a tantrum): You wish I were a stone statue waiting for my husband! Israel (blinking innocently): I never said that. Prophet x Demon King! +++ Theme: