Listen to My Explanation, I Really Am Not Trafficking in People

Just as Lu Chuan went out, a Universiade truck came towards him. When Lu Chuan woke up again, he came to a whole new world. This world coincides with a magical continent on the fourth-dimensional level. Therefore, a magical professional summoner was born in this world, which greatly improved productivity. However, what followed was the emergence of various alien beasts, which oppressed human living space. Humans had to abandon the countryside and gather in cities to build towering walls to resist the invasion of alien beasts. Lu Chuan spent 16 years peacefully under the protection of the wall, until that day, a humanoid figure appeared in the summoning channel.