Chris, the third son of the Ford family, was expected to have a great future, but he grew up incompetent.The nickname he received was "Blockhead". Because of his extreme incompetence, he was disinherited at the young age of twelve. Chris then discovers a mysterious grimoire in the archives. It was an item that allowed him to adjust parameters, enabling the modification and use of various forms of magic.Chris, who had always been interested in magic, was thrilled by this. He modifies various spells and uses them one after another. As Chris lives a carefree life creating magic, difficult problems befall him one after another.However, Chris doesn't notice. Without even realizing it, he somehow ends up solving the problems.

[It was supposed to be a loveless contract marriage, but my husband dotes on me, and the twins have grown attached to me...?] Melissa, an impoverished noblewoman, entered into a contract marriage with Ferio, the second son of a prestigious family of magicians. "As long as you take care of the twins who will eventually inherit this estate, you are free to do as you please." With those words, Ferio departed for the battlefield immediately after their wedding. Three years passed without a single reply to her letters, leaving them with no time spent together as husband and wife. Despite this, the days Melissa spent raising the adorable twins, Rude and Lia, as if they were her own children became irreplaceable to her. "Lord Ferio is finally coming home. The contract ends today..." The return of Ferio, now celebrated as a hero, meant that Melissa would have to part ways with the twins. But as she struggles to hold back her tears, Ferio appears before her, sweetly calling her name—? Does the end of their contract marriage mark the beginning of a happy family? The curtain rises on a sweet and heartwarming child-rearing romance fantasy woven by a contract wife, an awkward husband, and adorable twins!