Boku no Sorciere

Kazuhi Uesaka met twin children at a shrine near his grandfather's home as a young boy. He visited the shrine repeatedly in hopes of seeing them again, but never found them. Years later, he returns to the shrine and unexpectedly meets the twins once more. They appear unchanged from when he last saw them, with one smiling cheerfully and the other seeming more composed. Despite the time that has passed, something about their presence suggests they have not aged.