When Wang Tao saw Lan Yulian in his previous life, it was already four months after the apocalypse had begun. By then, Lan Yulian had experienced many things. Although she still retained her kindness, she wouldn't choose to sacrifice herself to save others.
But now, there were only half a month left before the apocalypse would strike, and Lan Yulian still held her pure kindness. For the survivors, she was willing to "sacrifice" herself.
Of course, this "sacrifice" didn't mean she would die; she was still afraid of death. It just meant she would stick by Wang Tao's side, which she didn't consider a big sacrifice...
Previously, she had chatted with people like Ding Yuqin while Wang Tao rested, and from them, she learned about Wang Tao's deeds and his character.
She knew Wang Tao wasn't a good person in the true sense, but he undoubtedly had a kind heart.