After three years at a boarding school, graduation day finally arrived. He was filled with gratitude and joy, all thanks to the support of his stepmother, Airi, who had always held his hopes for him. However, he received a call informing him that he couldn't attend the graduation ceremony… Later that day, a woman walked towards him, smiling and waving – it was Airi. Overjoyed and excited, he said, "Let's celebrate our graduation together tonight," and she smiled gently…