Lin Jin searched diligently in the old man's study all day, but failed to find any clues related to the truth of the Banquet Return Technique. Although somewhat frustrated, she decided to give up pursuing this mystery, after all, the knowledge she had acquired was now sufficient to protect herself.

Before leaving the bookstore, Lin Jin left a bottle of health-preserving pills as a token of her gratitude to the old man. Then, she began her journey home. Due to a busy day, Lin Jin didn't arrive home until after nine o'clock in the evening.

As soon as she entered, Lin Jin went straight to the bathroom to wash away her fatigue. After showering, she felt much more relaxed and then lay comfortably on the bed, drifting off into a sweet dream.

The next day, Lin Jin planned to rest and enjoy her rare holiday. However, Jin Yuanyuan suddenly showed up at her door, insisting that Lin Jin come to her house for lunch. Jin Yuanyuan told Lin Jin that Grandma Jin was already preparing lunch, and that Grandma Jin would be very disappointed if Lin Jin didn't come.

Faced with Jin Yuanyuan's enthusiastic invitation, Lin Jin felt too embarrassed to refuse. So, she reluctantly agreed to go to Jin Yuanyuan's house together. When the two arrived at Jin Yuanyuan's door, a heated argument suddenly broke out inside. However, Lin Jin and Jin Yuanyuan didn't pay much attention to it; after all, many families lived in this courtyard, and occasional disputes were normal.

When Jin Yuanyuan saw everyone gathered at her door, she was so frightened that she quickly pushed through the crowd and went inside, with Lin Jin following closely behind!

Inside, the atmosphere was unusually heavy. Grandma Jin sat silently on the edge of the bed, her face grim. Standing opposite her was a middle-aged woman, her face contorted with anger, pointing a finger at Grandma Jin and muttering something incessantly. Beside the table sat a middle-aged man, his head bowed, seemingly indifferent to everything.

Just then, Jin Yuanyuan rushed into the room. She went straight to Grandma Jin's side and gently patted her back to help her catch her breath. Jin Yuanyuan's eyes were filled with resentment as she stared intently at the couple, as if she wanted to breathe fire. But when she spoke to comfort Grandma Jin, her tone was unusually gentle: "Grandma, don't be angry. Didn't we already agree? You'll only have me as your granddaughter from now on, and I'll only have you as my grandma! Your health has only just recovered; you can't get angry over these irrelevant people. It's not worth it!"

Hearing Jin Yuanyuan's words, the standing woman was so angry that she wanted to slap Jin Yuanyuan. Lin Jin suddenly interrupted her, "Grandma, I'm hungry! When are you going to cook?" Before Grandma Jin could answer, the middle-aged woman said to Lin Jin, "Where did this wild girl come from? Get lost! Can't you see we're a family talking?" Lin Jin smiled and looked at the middle-aged woman, asking, "A family? Then may I ask who you are?"

The middle-aged woman puffed out her chest and said, "I'm this old lady's daughter-in-law! And Jin Yuanyuan's biological mother!"

Jin Yuanyuan suddenly walked over and grabbed Lin Jin, saying, "Jinjin, don't pay attention to her. I haven't had a mom or dad for a long time!" Grandma Jin chimed in, "Jin'er, you said you were hungry, I'll go cook now." Turning to the couple, she said, "You two, go on! This old woman has to go cook for my granddaughter now, I don't have time to chat with you here!" The middle-aged woman put her hands on her hips and insisted, "Go? Not so easy! Old woman, you have to hand over all your retirement pension from all these years, and this house has to be transferred to us!" The middle-aged man chimed in, "Mom, Yuanyuan is a girl, she'll be someone else's family after she gets married, who else will get this property if not us?"

Jin Yuanyuan frowned, stepped forward and said coldly, "What right do you have to ask for these things? My grandmother raised my father with great difficulty, but you didn't care at all. Now you want to take advantage of me? There's no such thing as a free lunch."

Enraged, the middle-aged woman reached out to shove Jin Yuanyuan, yelling, "You worthless thing, stop trying to sow discord here!" Jin Yuanyuan dodged lightly, and the middle-aged woman missed her target, nearly falling over.

At this moment, Grandma Jin also said sternly, "Stop bothering me! I haven't had a son since the day you severed ties with me. Leave now and don't come back." The middle-aged woman was about to hit her when Lin Jin quickly said, "If you don't leave, I'll call the police and report you for trespassing!" The middle-aged woman quickly retorted, "What trespassing? This is my house!" Lin Jin sneered, "This house belongs to Grandma Jin. You and Grandma Jin severed ties long ago, so how can it still be your house? If you keep causing trouble, I really will call the police." Upon hearing this, the middle-aged woman's eyes showed some panic, but she still stubbornly said, "Who are you trying to scare? I'm not leaving." Just then, Lin Jin said to the noisy crowd at the door, "Could any uncle or auntie help Grandma Jin call the police? I'll definitely thank you properly when I get back!"

An elderly woman outside said, "Dr. Lin, I'll go!" and started to leave. The couple were scared when they saw that she was really going to call the police, but they still stubbornly said, "Fine, we'll go, but don't expect to see your grandson again!"

Grandma Jin wiped away her tears, looked at Lin Jin gratefully, and then held Jin Yuanyuan's hand, saying, "Thanks to you all, with you here, this old woman feels at ease." Lin Jin smiled and said, "Grandma, don't be sad, we'll always be with you from now on." She then thanked the aunt who had helped them earlier. Afterwards, everyone went into the kitchen together.

After the couple left, Jin Yuanyuan seemed like a different person, always sullen and unhappy. Grandma Jin and Lin Jin naturally noticed the change in her.

After dinner, Grandma Jin went back to her room as usual, leaving Lin Jin and Jin Yuanyuan in the house. Lin Jin felt bad seeing Jin Yuanyuan's listless appearance.

After a while, Jin Yuanyuan suddenly raised her head, her eyes red as she looked at Lin Jin. As if she had been suppressing her emotions for a long time, she finally couldn't help but speak, "Jinjin, why don't they like me? I'm their flesh and blood too! From childhood to adulthood, I've known they prefer my younger brother and sister, and I've always tried my best to get their attention. I thought that if I was good enough, they would treat me better. So I studied desperately, hoping to get into a good university and make them proud. But even after I got into a top university like Tsinghua, they still won't even glance at me..."