Xiao Yi knew that he could no longer treat Yu Wei the same way as before. They were no longer the innocent young boy and girl, and their feelings were no longer just friendship or love. But the bond between them was inseparable.

They began to reconnect, sharing their experiences and feelings. They talked about their future plans and the changes in the world. Their relationship seemed to have returned to its former closeness, but it also seemed different.

Xiao Yi often wondered what their relationship was like. Was it love? Friendship? Or something more complex and profound? He couldn't find the answer, nor did he want to delve into it. He only knew that he cherished every moment with Yu Wei and the bond they shared.

As time goes by, Xiao Yi and Yu Wei's relationship becomes closer. They fight together, live together, and face the changes in the world together. Their feelings also gradually deepen in this process, becoming more complex and difficult to describe.

Xiao Yi no longer dwelled on the true nature of their relationship. He only knew that he was willing to sacrifice everything for Yu Wei and face all future challenges with her. He also believed that Yu Wei had the same feelings for him.

Their relationship became increasingly important, becoming an integral part of each other's lives. Together, they experienced countless trials and tribulations, witnessing the world's changes and growth. Their feelings grew stronger and deeper in the process.

Ultimately, when the zombie threat is finally over and humanity regains peace and tranquility, Xiao Yi and Yu Wei find their own answer. Their relationship is no longer just friendship or love, but a deeper and more complex bond. They know they will always support each other and walk through every stage of life together.

Xiao Yi stood in front of the window again, looking at the sunshine and blue sky outside. He knew that the world had become a better place because of Yu Wei. He also knew that their relationship would always be the most precious treasure in his life. He took a deep breath, then turned and walked towards Yu Wei, ready to face the challenges and opportunities of the future with her.