"Dingling!" Class was in session. In Room 1 of the senior three class, Mathematics teacher Liu Mo stood with a stern expression—her classroom seemed utterly silent. Yet Gao Liang, Classmate, was casually playing his sleek handheld computer at the front of the room, completely out of sync with the atmosphere, which only deepened Teacher Liu Mo’s severity. "Today is a short exam! Please complete it within half an hour!" As soon as Ms. Dong Jiao, the class monitor, began distributing tests, snowflakes of papers drifted to Gao Liang’s desk—his head grew large with the weight of them. Time passed steadily; ten minutes had gone by when Gao Liang still hadn’t picked up a pen. Recently, his mind had been completely elsewhere—he’d barely listened to anything the teacher said. What now? Senior stalwart Dong Jiao would have to hand in a blank paper—after all, he wasn’t even on the path to university anymore. Watching classmates writing furiously with swift movements, Gao Liang remained indifferent. As he glanced toward the front of the classroom, his gaze collided with Liu Hei Gou’s cold stare—the expression on the latter’s face suggested: "Gao Liang, this time you’re finished! You didn’t attend class at all—how could you leave our class behind? Otherwise, we’d have taken home the honor title for Outstanding Class!" Still, Gao Liang wanted to give up completely. His neighbor, Wu Shun, gently nudged him with his arm. Gao Liang looked down at his desk and saw a delicate pink crane-shaped paper—on the inner wing of the crane, four elegant characters read: "Do not surrender!" Gao Liang barely raised his head when he met the gaze of the beautiful girl in the front row—her eyes so clear and pure, as if untouched by dust. Gao Liang clutched the crane tightly. In that moment, he knew—he could no longer allow himself to be mocked. To tell the truth, it had been the first time Gao Liang had lost face publicly—on the basketball court—and now, in front of everyone, he’d lost again. In contrast, student representative Xiang Yunfei was thriving, earning cheers and applause from many classmates. How humbled! Not only was his academic performance last place, but physically too—he stood just 1.67 meters tall—lacking potential or strength in sports such as basketball, track events, and soccer. Ever since he had dreamed of becoming stronger and more outstanding, yet each time he tried to strive, the outcome was always failure. As failures piled up, his confidence waned completely. Gradually, he began to lose heart—and settled into a life dominated by video games, cigarettes for comfort, and drinks to ease stress. Only in this way could he feel any relief. "Starting today, I will change myself!" Just as Gao Liang finished speaking, a pleasant voice echoed behind him: "Gao Liang! Gao Liang! From now on, you are my master! What do you need me to help with?" While preparing to open his handheld computer, he found it missing from his desk. Then he noticed—Liu Hei Gou held it in his hands. Oh no! The senior stalwart had clearly intended to use this valuable resource—and now had taken it right off the table. Just as he was struggling and downhearted, that gentle voice returned: "Master, you didn’t even listen to me—you ignored me, did you? Hmph! If you don’t pay attention to me, I’m leaving!" Only then did Gao Liang notice that on his exam paper, the beautiful angel had materialized into a Barbie-sized figure—so graceful and elegant, with a soft, full body and perfectly proportional figure—exceeding any beauty one could imagine. Yet, Gao Liang’s eyes were suddenly embarrassed—he instinctively reached out to touch her gently. But the angel quickly stepped aside, standing at the corner of his paper and said: "Gao Liang, don’t even think about touching me—or I’ll no longer treat you kindly!" "Oh! Oh!" Gao Liang now realized how awkward he’d been—quickly apologizing, "Madam, I truly can’t solve any of these problems at all!" "Hush! Don’t call me 'Madam'—call me Ying Er!" With a quick sweep of her flowing hair, she became even more charming, stirring a flutter in Gao Liang’s heart. He then said, "Ying Er, please help me with this! Teach me how to solve these problems!" As he spoke, Gao Liang handed over the large cup of Nature’s Tea he had kept unused all morning. Ying Er took a sip through her straw and praised it: "The flavor is excellent—it even surpasses the tea I used in my original Universe Space!" Gao Liang glanced at his watch—only ten minutes remained until submission, and he felt his throat growing hot with anxiety. "Quickly enter the Yu Guang Box space to study!" Ying Er beamed. And suddenly, Gao Liang felt himself radiating into a beam of light, stepping into an enchanted realm. Wow! Where is this? Isn’t this incredible? How did I get here? He found himself sitting in a bright and spacious classroom at Tsinghua University Affiliated High School—where a lecturer with refined elegance was enthusiastically presenting problems on the blackboard. Gao Liang’s heart thumped wildly. Why did these ten questions feel so familiar? As he checked his exam paper, now shared in this space, he gasped—he found that every problem matched exactly what was being written on the board! Tsinghua University Affiliated High School was renowned nationwide—and the lecturer's teaching style truly stood out. Even Gao Liang, who usually disliked mathematics classes, had developed a genuine interest. If only he could have this teacher guide him in math! Though Gao Liang hadn’t been particularly attentive to his studies, his ability to understand and absorb information remained strong—except for some basic concepts and formulas that he hadn’t committed to memory, which he now grasped about 70% of the time. With this excellent mathematics instructor offering insightful explanations, Gao Liang began working through problems steadily. Ying Er also didn’t stay idle—she helped him locate relevant calculation formulas and read them aloud to him—one time only. Gao Liang listened intently, afraid he’d miss a single word. Yet sadly, one problem still seemed off—finally realizing that he had misheard the formula—and immediately asked Ying Er to restate it. But she replied: "It’s time—we must now go and hand in the papers!" As soon as the words fell from her lips, Gao Liang walked with Ying Er back to Room 1 of Senior Three at Hanhai City High School—where classmates were steadily submitting their exams. Dong Jiao, the class monitor, had already stood before him, urging him forward. Yet Gao Liang still wanted to complete his last problem fully—only for a hand to gently snatch away his paper. He looked up—he saw Liu Hei Gou’s eyes, cold and sharp with an undercurrent of contempt. Was she going to… Indeed, after returning to the podium, Liu Hei Gou displayed both papers before everyone: "Classmates! Look at these two exams—what a difference they make! This one is the work of our most outstanding student, Zhang Yuping—every single question solved correctly!" "Clapping! Clapping!" The classroom erupted in thunderous applause.