Kurenai no Shinigami wa Nemurihime no Neoki ni Nayamasareru  

Also known as: 紅の死神は眠り姫の寝起きに悩まされる, The Crimson Reaper and the Sleeping Princess

by Mori

Princess Lilith of the Kingdom of Amaryllis is to have a political marriage for an alliance with the Empire of Ayrras. Her husband-to-be is Crown Prince Gesualdo, who is feared as the "Crimson Reaper." Gesualdo does not trust Lilith and maintains a cold attitude towards her. Not discouraged, Lilith has no intention of remaining a decorative princess and boldly confronts Gesualdo. However, Lilith actually has a secret...! (Source: Shufu to Seikatsusha, translated) Note: Includes 3 extra chapters.