In elementary school, they attended the same summer camp. Coincidentally, they were all in a hurry to go to the toilet, but there was only one free cubicle.

In terms of first come, first served, it should have been Li Nana who was able to enter first. However, Yuxuan really could not hold it in anymore. In addition to her stubbornness and overbearingness, she pulled Li Nana away and settled her needs.

Li Nana, who had been holding it in for too long, immediately peed her pants and she cried out loud. This attracted a lot of attention, and she felt humiliated.

Having been doted on by her elders since she was young, there was no way that Li Nana could put away the anger from the embarrassment she had suffered. Thus, ever since then, she bore a grudge against Yuxuan.

Actually, Shi Yuxuan had also peed her pants back then.

Although she managed to snatch the cubicle successfully, she could no longer hold it in. She only took off her pants and squatted down.

When she felt that something was wrong, she realized that she was still wearing her underwear.

However, she did not cry out loud like Li Nana did. Instead, she quietly took off her shorts and threw them away. She then calmly put on her pants, as if nothing had happened.

At that time, Yuxuan had just been adopted by Shi Qi. She was still young and mischievous, so she forgot about this matter quickly.

But Li Nana was different. She had always held a grudge.

If she didn't see it, she naturally wouldn't be bothered by it. However, both of them took their undergraduate studies at Shanghai University of Finance and Economics.

As the old saying went, 'I would recognize you even if you turned into ashes'. That was probably what Li Nana thought.

When they walked past each other on campus, Li Nana immediately recognized Shi Yuxuan and she used all sorts of methods to mock and humiliate her. Luckily, Shi Yuxuan rarely stayed in school obediently and thus, she didn't feel affected.

Moreover, to her, Li Nana was just a princess. She was not evil-hearted nor scheming, so Yuxuan ignored her.

But she did not expect Li Nana to be Li Beichen's sister.

That meant they would meet frequently in the future. This was going to be troublesome.

"Shi Yuxuan, how are you worthy of being together with my Second Brother?" Li Nana was wearing a sleeveless princess dress and a pair of crystal heels. Her golden wavy hair hung down her waist. Although she was a very beautiful person, her tone was filled with anger.

As she was getting scolded by Li Nana, Shi Yuxuan wasn't really happy about it. "Of course I'm a good match for your second brother. Besides, since we are a family, you have to address me as Second Sister-in-law. Don't be so impolite. People will laugh at us if they find out."

Yuxuan was suppressing Li Nana with her identity.

The latter stomped her feet in anger. "Shi Yuxuan, ptui! How dare you ask me to call you Second Sister-in-law?"

"What else? You can't be calling me sister-in-law, right?"

With that, Shi Yuxuan leaned into Li Beichen's embrace on purpose. She raised her head slightly and looked at him pitifully.

Li Beichen knew what she was thinking. She knew he could make Li Nana stop.

But she continued to act coyly in his arms.

Li Beichen's gaze turned cold as he looked at the woman in his arms. "Nana, greet your Second Sister-in-law."

"Second Brother—"

"Yes?" His voice was like a zither that was on the verge of reaching its limit, it was terrifying.

She trembled as she looked at Li Beichen's darkened face. Li Nana's fear was bone-deep and she could only address Shi Yuxuan as sister-in-law.

"You're too polite." Shi Yuxuan looked at Li Nana with an ambiguous smile. "Although I've already moved to the capital of Hua Du, the wedding is in a month after all. You're about the same age as me, so I'm a little embarrassed to be addressed as Second Sister-in-law."

Upon hearing this, Li Nana's lips twitched.

I've never seen a woman who is as much of a fake b*tch as her!

She looked at Shi Yuxuan, then at her brother. But in the end, she had nowhere to vent her anger and could only swallow it in rage.