I was broken off my engagement because I could only cook terrible food. My younger sister, who always made fun of me, is now taking my place... Is being bad at cooking really that wrong? This is the story of how I, using this "special skill," came to be called a dragon slayer.

I have a special "talent" where everything I cook turns out inedible. However, the Crown Prince called it poison—all I did was make tea. My engagement was broken off because of my cooking inability. But would a Crown Princess really make tea herself? I didn't think so, and I suspected someone who knew about my cooking problem was involved... Sure enough, it was my younger sister, who always mocked me, who was behind it all. If my cooking is so bad it could even kill a dragon, then I'll prove it! I became an adventurer, and finally...