My Class Got Transferred to Another World, But My Personality Was So T*ash That I Got Expelled. They Told Me to Do Whatever I Want, So I’ll Build an Empire Underground with My Unique Skill [Hole]

Bandou Chataro woke up on a rough stone floor. Looking around, he saw his classmates lying in a similar fashion. What caught his eye were the white people in armor surrounding them. It didn’t seem like cosplay. “Everyone! Wake up!” A young woman stepped forward from the crowd and raised her voice. The class representative, who had just awakened, asked, “Where is this?” “This is the Kingdom of Gadol. I am Princess Emilia, the first princess!” It was a country he had never heard of before. His classmates were in a commotion about being transported to another world. Emilia said, “Please save this world, Hero!” His classmates confirmed the title of Hero in their status and got excited, but...