The Kryptonian Who Became a Substitute Messenger Starting from Conan

I'm tired. Joey Jost is a stand-in messenger. You can call me jojo. At the same time, I'm also a Kryptonian. Now that I'm so powerful, Ai-chan belongs to me hahahahahahaha. Ps: This book has a single female protagonist. This is the author's first book. Since the author is a boarding student and is in the third grade of junior high school, I will update it from time to time. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.