Another alias of the reincarnated nobleman Rex Hesselink, who goes by the name of "The Fiend," is "The Preacher of Love. His other alias is "The Preacher of Love". In the past, he was a love warrior who said, "If you don't have love, you don't get married! He is a warrior of love who has stated in the past, "If you don't have love, you don't get married! Rex, the older brother, is perplexed by this sudden proposal. But the man he is arranging it with is his one and only best friend, Ryszard, the heir apparent of the Duchess of Chriswood. Nobility? Politics? A loveless marriage is a definite no-no! Rex decides to go to Chriswood territory. He is also involved in experiments with charms, the "Hesserling faction" commotion, and more.... In the midst of his slapstick daily life, there are signs of the "flood" that took the life of the previous Count in the Aulenang forest. The enemy is a ruthless dragon with a threat level of "S" and a dimensional attribute. Rex and his vassals set out to defeat the dimensional dragon!