Suddenly, Luo Ze'en leaned down and kissed the hair clip on Gu Qingqiu's head. Then, seeing Gu Qingqiu's hesitant gaze, he said, "No matter what happens, don't take the hair clip off. Wait for me!"

Gu Qingqiu didn't say anything, just watched as Luo Ze'en climbed into the secret passage and disappeared from sight.

She couldn't help but ask the male protagonist system, "Did Luo Ze'en just kiss the top of my head? Was it just my imagination? What does he mean by that? Could he really have feelings for me?"

[Host, Lozen did kiss you, but it seems like he kissed a hairpin.]

Gu Qingqiu's heart skipped a beat. With her high intelligence, she vaguely realized something. "Could Luo Ze'en have some kind of superpower that I don't know about?"

[Well, according to the plot, he should survive the zombie horde by sheer luck, and then, after being infected while retrieving a level-five zombie core, he suddenly awakens his second superpower—possession.]

Possession?

Gu Qingqiu thought of the inexplicably increasing experience bar, the pen that Luo Ze'en had kissed, and then suspiciously touched the hair clip on her head, as if she felt that these things were connected and the clues were linked together.

How could Lozen awaken his powers ahead of schedule?

This kid, even while being a hostage, managed to do so much secretly. He truly deserves to be called the protagonist of this world. Gu Qingqiu thought to herself.

"System, do you have any methods or tools to help me get from the room to the laboratory?" Gu Qingqiu suddenly asked.

The male protagonist system seemed to have sensed Gu Qingqiu's intention: [Host, you've found the key to breaking the deadlock, haven't you?]

Gu Qingqiu nodded: "I only need a few hours to successfully develop the zombie vaccine."