“Onii-san, congratulations on your marriage. This is your bride, Watanae Yuuka,” said the speaker. I am Sakata Yuuichi, currently in my second year of high school. Due to my parents’ circumstances, I unexpectedly find myself getting married, and to make matters worse, my partner is a plain girl named Watanae. After a bad experience during my third year of middle school, I lost all interest in real-life girls and became solely focused on 2D heroines. However, I soon discover that Watanae is an otaku who becomes very talkative once you get to know her. She surprises me by happily engaging in our conversations and showing me aspects of herself that I never would have expected from a girl in my class. As we will be living together, she asks if it’s alright to call me Yuu-kun, and before I know it, she starts to bridge the gap between us. One day, she reveals to me in secret that she is the voice actress for Yuuna Izumi from “Alice Stage,” my favorite heroine! Even though I am only interested in 2D heroines, I cannot help but find Yuuka’s true self, which she only reveals when we’re alone, incredibly adorable. This is the story of how Yuuka and I began our journey as fiancées in a heartwarming and chaotic romantic comedy.”