I was re‑summoned in my thirties, but no one realizes I'm a godchild

The main character, Ikuma Sawajima, was once summoned to another world as a godchild when he was a teenager. He returned to his original world a year later, but to his surprise, he was summoned back to the same world when he was in his thirties! However, no one recognizes Ikuma as the godson he once was, and he is treated as an obstacle, He is placed under the care of a man named Seldea Salidat until he can be returned to his original world. The person who had hated Ikuma the first time he was summoned to the world was a person who had thoroughly disliked him...? Ikuma is upset by this unexpected encounter. However, unlike his former attitude, Seldea treats him in a friendly manner. Ikuma ...