In which chapter did Xie Yu say," Brother, I'm an adult," or did the book contain such a description?

Answer 1

I don't think it will necessarily satisfy your needs, but I will try my best to recommend a novel that is most relevant to your description of your needs:

The first time Lin Er met Xie Yan, the handsome man was pinching peach blossoms. "Why can't you fall in love with me?" The handsome man leaned against the wall in a sloppy manner. There was a hint of laziness in his voice."Student, let me tell you the truth. Actually, I'm not from Earth." Peach Blossom: "?" The handsome guy: "My real name is Nicholas Mariyan. I'm different from you. Let's talk about my hair. When I cry, it turns blue. When I smile, it turns pink. When I cry and laugh, it becomes colorful. You can't even change your hair color. How can you date me?" Which fucking mental hospital did she come from? Such a handsome face was wasted. However, when the commander tried to cover up for him, Xie Yan's peach blossom eyes narrowed slightly. His gaze was indifferent."Student, you must have made a mistake. Maybe it's because I look more friendly, so you have the misunderstanding that I have a sense of justice." In fact, I like to cover up my shortcomings without asking why." "I'm here to support my lady. Who cares if you're right or wrong?" he scoffed. It was a 1v1 match at Wen Yunchuan's Ninth High School.
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"Master Shen, Did You Break Up Today?" was a modern romance novel written by Lu Youyang. The general plot of the novel was:

There were two freaks in the attached high school of Nanjing University. They were Xie Qian, the top student of Grade One, Class Nine, and Xie Shenshen, the slacker."My sister is weak and can't take care of herself. Don't bully her." Everyone was speechless. "I'm afraid you have some misunderstanding of weakness." Master Shen said,"You're not allowed to put your arms around other men's shoulders. I'm your brother!" Years later, his university classmate: "The school hunk Xie and the school belle Xie are a perfect match." Team Ms: "Sister Qian's skills were taught by Boss. A one-on-one? I'm afraid you don't know the fear of being dominated by your wife." A certain family head in Jingdou: "I heard that the Xie family head and Madam were engaged when they were young. At that time, Madam was still the adopted daughter of the Xie family. Now, she has been supporting her for seven years." A certain someone who knew the truth: "Second Brother, Sister Qian ran away from home again. She even left a breakup letter…" Xie Shen's fingers trembled as he pinched the piece of white paper with the words 'Breakup' written on it. His cold face was expressionless. The butler opened a small box and counted the stack of papers inside. With a calm expression, he said,"Young Master, this is the 54th letter."
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"Return to Youth and Live Up to Youth" was a romantic youth-youth-campus novel written by the author, Sunset Kiss. The general plot of this novel was:

The 25-year-old Yu Ci had turned his life into a pool of stagnant water. There was no bread and no love. The time you let down will eventually be repaid in another way. This is such a painful realization. Fortunately, she had returned to her youth. Yu Ci thought that she would continue to be a top student and reach the peak of her life. However, a certain someone said that he had been waiting for a long time. Looking at the handsome young man in front of him, he could not let others win over him, so he could only win over him himself…Double top students, walking all the way, sweet all the way, not letting down Shaohua…
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Boss Xie's Little Gentleness was a modern romance novel written by the author, Zhao Moli. The general plot of the novel was:

There were 17 girls in the class who had sent love letters to Xie Mingtang. However, he had never been in a relationship for four years in university. His phone screen saver had not changed for six years until he heard the news that Cheng Ran was getting married…Finally, he replied to his mother."Okay, I'll go on a blind date." Song of the Ages has many supporting roles in the role of a mentally ill, cold, and studious X introverted liberal arts woman. You have to be careful when your tastes are mixed. Those who can persevere until chapter 48 are good sisters ~
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"Young Master Yu's Love: The High and Cold School Belle" was a romantic youth-youth campus novel written by the author, Yu Bingling. The general plot of this novel was:

He had made a bet because of a joke between his brothers that he was determined to catch up to her, the campus belle of Rong City First High School. Even though she was a top student, even though she was a little cold, he did not give up. He had only pursued her for a bet, but he had fallen in love with her unknowingly. He didn't know it himself, but his brother found out…This shouldn't be. The direction of the story didn't seem right! Yu Feiyang was stunned.
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"It's Never Too Late to Wait for You" was a modern romance novel written by Cai Cai0731. The general plot of the novel was:

He was a rich second-generation heir, handsome, cold, rebellious, and regarded learning as nothing.
She was a top student, ranked first in the entire grade. She had a delicate face and was calm and steady. He was good at everything, but he loved to teach people a lesson.
That year, on campus, he had secretly engraved two words on the gift he had given her,"Wait for me." He just didn't expect that it would be more than ten years since they parted.
...........................
He said,"You're so young, but you talk like an old man, just like Teacher Liu." Teacher Liu is the old pedant, and you are the young pedant. I might as well call you the young pedant in the future."
"Childish!"
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"Lu Yu, Come to Sister's Arms" was a romantic youth novel written by the author, Jiani. The general plot of the novel was:

The first time she met him, he was the man of the hour in school who attracted countless girls, while she was just a fake top student who was addicted to skipping classes and playing after falling out of love. She was subdued by his brilliance and wanted to take it for herself. The female hooligan met the cold and aloof top student. Wait, did she seem to have forgotten that she was two to three years older than him? Many years later, when she met him again, she asked,"What? It's been a long time since we last met. You've become prettier, but why have you become so timid?" Lu Yu, I'll be the one to decide the position! The plot is fictional, please do not imitate it.
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The book,'Girl, There's Plenty of Days Away', was a romantic youth-love novel written by the author, Chenchen. The general plot of the novel was:

"Sir, should I call you uncle, uncle, or grandpa?" "Just call me grandpa. Who's with who?" The counselor said,"Meeting dismissed!" The meeting was finally over! "Xiao Likai, are you really from the same hometown?" "No, I've leveled up. We used to be from the same hometown, but now I'm her grandfather!" What did he mean by that? Since when did she acknowledge him as her master?
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The book,"Classbook-Level Liking", was a romantic youth-youth-school-type novel written by the author, Wild Goose in Pond. The general plot of this novel was:

The brain hole is bigger than a primary school teacher/a dog that is not human, a university professor, a broken mirror, a sweet text/a man chasing a woman
1. After the parent-teacher conference, she was discussing the student's problems privately. She did not expect to meet her ex-boyfriend, whom she had not seen for ten years. Without thinking, she blurted out,
"Are you here for your son's parent-teacher conference?"
The man opposite her revealed a mocking expression.
"You gave birth to such an old son for me."
…
2. Xie Cun had been chasing his ex-girlfriend for nearly two months. For some reason, she was as stubborn as a block of wood.
Until one day, when she asked him out for dinner, she heard him ask vaguely,
"Why aren't you with your boyfriend today?"
Xie Cun stared at the person with puffed cheeks opposite him. He narrowed his eyes and asked,
"What do you mean my partner?"
The other party said,
"I know. You don't have to be embarrassed. Every time the two of you come out to eat, you still use me as a shield."
Jiang Chi swallowed the last mouthful of dessert and comforted her,
"Society is still very accepting of relationships between men."
？
3. One day, Jiang Chi leaned on the sofa and asked curiously,
"Why haven't you found a partner after so many years?"
The other party replied lazily,
I was hurt by you back then."
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The book,"Why Not Care About My Youth" was an ancient romance novel written by the anonymous author, Little Daze. The general plot of this novel was:

When Wan Tong was young and ignorant, she wanted to be treated like her brother and go to the Academy to study. The parents, who had shaky principles for their daughters and granddaughters, succumbed to her stubborn temper and embarked on the road of no return. A series of things happened in the Academy that made Wan Tong happy and unhappy. She also fought for justice a few times, and then... She had been beaten up, uh, just when she decided to turn over a new leaf and be a good person. 'Eh, I treat you as a little follower. Why are you a Growth-type…'