Professor Qian said that his home is very close to the school, just in a small district behind the school, which is a teacher's apartment specially built by the school for teachers. The community management is strict, with many green spaces and a good environment.

  After walking for about twenty minutes, they arrived at the security booth and registered before following Professor Qian to his home.

  The decoration style is very rigorous and tidy, but it's a bit cold.

  "I usually live alone here, and I eat at the school cafeteria. Only on weekends does my wife occasionally come to visit me, so it's a bit quiet. Please sit down and rest for a while." said Professor Qian with a smile.

  Is anyone living here?

  "By the way, where is your wife and son? Don't they live with you?"

  "My old partner has been dead for over a decade, I'm usually very busy, living near the school is more convenient, my son and his family have to work, commuting from here is too troublesome, and I also dislike their noise, so we didn't live together."

  Qian professor handed Xianyu a cup of water.

  Xianyu awkwardly took over: "You also sit down and rest, don't bother calling me, by the way, where's Xuanxuan? Why haven't I seen him?"

  "He's playing in his own room. The house is soundproof, so he probably didn't hear us come back. You wait here while I go call him."

  At first glance at Qian Wanwan, I was slightly taken aback.

  The little guy has a fair complexion, handsome features, deep contours, and is about 1.3 meters tall, slightly slender, and at a young age, already has the potential to be a heartthrob.

  "Professor Qian, is your grandson mixed-blood?"

  Qian's bright blue eyes sparkled with amusement, and his deep-set eyebrows made Xian Yu unable to help but suspect that he was of mixed blood. She guaranteed it with her own character - this little guy was absolutely a mixed-blood child.

  "Haha, he takes after his grandma, my partner's mother is a foreigner from E country, it can be said that this is an intergenerational inheritance."

  It turns out she looks like grandma.

  "Your wife must have been a great beauty."

  The beauty of Professor Qian's wife can be seen from her grandson's appearance.

  "Yes, she was very beautiful. Unfortunately, when she was young, she suffered with me and later got sick and passed away without enjoying much happiness." Professor Qian showed a nostalgic expression.

  Not wanting to see Qian Professor again, with too many painful memories, Xian Yu quietly took a sip of water and then introduced himself to Qian Huaihuai: "Hello, Huaihuai, my name is Xian Yu."

  Qian Xuan glanced at his grandfather and then smiled back, "Sister is good."

  Although he doesn't need a tutor, he's a well-mannered good kid. Grandpa is old and usually does research alone, feeling quite lonely, so it's not bad to occasionally play along with him.

  Seeing the look in his grandson's eyes, Professor Qian coughed awkwardly.

  Isn't this just a lame excuse? I was thinking of testing the girl's character, after all, geniuses are hard to come by. In their line of work, they're not afraid of lacking talent or being mediocre, but what they fear is that a genius has an unrighteous heart. History is full of patriotic scientists who returned home after completing their studies, but there are also many cases of people taking research secrets abroad.

  If Xianyu were an ordinary person, it would be fine. But since she has this talent, he can't help but treat her with more caution.

  Although it can be seen from some details later that the girl is kind and gentle, but since the words have been spoken, it's not good to go back on them, and besides, the little girl's family situation is not good, so temporarily letting her tutor his grandson and earn some living expenses isn't a bad idea.

  Although his grandson does not need tutoring.

  "Now that you two have met, you can get to know each other better on your own. I still have some things to take care of at school, so I'll leave first. You and Xuanxuan can either order takeout or go to the school cafeteria for lunch."

  Seeing that the two of them didn't have much conflict, Professor Qian didn't want to stay any longer. He was in a hurry to go back and conduct simulation experiments, hoping to get results as soon as possible.

  Idle put down the water cup, got up and saw Professor Qian off.

  After returning, she stared at Qian Xuanxuan with wide eyes, completely unsure of what to do.

  Since you're here to make up for lost time, then just go ahead and make up for it!

  "I heard from Professor Qian that you're in third grade? Hmm... which areas are you not quite good at? I'll help explain them to you again?"

  Forgive her for being inexperienced in tutoring for the first time and not quite understanding how to tutor.

  Qian Xuan was also in a dilemma. As a top student, he didn't really understand how to pretend to be a poor student either. The key was that all of these seemed simple to him, so how could he pick out the difficult points to ask his tutor sister?

  The two of them walked towards Qian Qianyu's room, each lost in their own thoughts.

  Qian Qian slowly took out her homework, and accidentally dropped a perfect math test paper on the ground.

  With a quick movement of his hands, he picked it up and saw that bright red color, his mouth twitching slightly.

  Wasn't it agreed that you need supplementary tutoring?

  Just as the play was about to end, Qian Xuan snatched the test paper: "Coincidence, all coincidences, I just happened to score 100 points occasionally."

  No sooner had he spoken than another full-score English paper also fell out of the book as he snatched it.

  Xianyu once again quickly picked up the test paper, looking at the familiar perfect score, and glanced at Qian Xuanxuan.

  "You keep writing, I believe you will lose."

  Qian Wanwan: "......"

  Has life finally caught up with this little kid?

  "Alright, since you're not a poor student, don't pretend to be one. If you don't need tutoring, then just focus on your own stuff. I'll keep you company and study with you, and later at noon, I'll take you out for lunch."

  Xianyu returned the test paper to Qian Xuanxuan, then found a chair and sat down, no longer paying attention to him. Unfortunately, she didn't bring her own book today because she was helping Qian Xuanxuan with her studies, otherwise, she could have read a book during this time.

  She didn't plan to be a tutor in the first place, but couldn't bear to disappoint Professor Qian's kind intentions. Now it seems that Professor Qian only let her come to tutor Qian Huahu because he wanted to help her, and both of them had good intentions, so the misunderstanding was formed like this.

  Qian Xuan secretly glanced at Xian Yu, although Xian Yu said he didn't care about him and let him arrange his own schedule. However, Qian Xuan had originally planned to come over and have some fun with Professor Qian on the weekend. Usually, studying was already very tiring for him, as a top student, he always adhered to the principle of balancing work and rest in his learning approach.

  Since the play can't be performed anymore, he shouldn't need to pretend to study either, right?

  "Sister, are you Grandpa's student?"

  Qian Xuan was bored and didn't know what to do, so he started chatting with his idle friends about the weather.

  "No way, I'm just a freshman, Professor Qian teaches juniors and seniors."

  Hearing his question, she tilted her head and thought for a moment, she shouldn't be Professor Qian's student, right? Professor Qian occasionally teaches juniors and seniors, but she's only a freshman.

  "Does your sister have a boyfriend?" Qian Xuanxuan continued to ask.

  What is a boyfriend? As someone who has been solo since birth, I don't really understand the mindset of kids these days. They're still in elementary school, why are they asking questions that make me uncomfortable? Can't they ask something with a sense of curiosity instead? Like whether aliens exist or not?

  "Do you know how to play games? No? My sister will teach you."

  Reluctant to answer the question, he changed the subject and took out his phone.

  "It seems like sister doesn't have a boyfriend."

  Qian Xuanxuan is not only a primary school tyrant, but also the excellent gene of his family has been well inherited in him, so he cleverly heard out the trivial and not very brilliant topic diversion.