Solo-killing a giant.
And using an extremely dangerous, unheard-of method—following the giant's consumption and voluntarily crawling inside its body.
This left the modified human, Vichy, in a state of "crash."
"Hey, metalhead~ You just need to pour the heart's blood over the surface of the badge, right...? That's what the staff told us when we accepted the 'First Exploration' mission."
Those words struck Vichy's head like a heavy hammer.
"Wh... What? First Exploration! Wait, don't waste something so precious! That's an intact Giant Heart!! You really are Newcomers?"
"Yeah. We'd just come out of Elevator No. 3 when we saw this giant running through the streets. Since we had no exploration experience, we tried following it. We didn't expect to find you already fighting the giant... Considering that you got here first and were our seniors, we left it to you instead of interfering directly. By the way, what's an intact Giant Heart good for? I clearly remember the staff emphasizing that we were supposed to pour the 'Heart's Blood' onto the badge."
Vichy's wildly chaotic thoughts settled somewhat. Only Newcomers could do something so insane, and this group had no reason to deceive him.
"That's because, under normal circumstances, it's simply impossible to obtain an intact heart! Hunting a giant is already incredibly difficult. As long as their hearts aren't damaged, giants can undergo Super Fast Regeneration. Usually, when attacking a giant, its heart has already been damaged... It's extremely difficult to remove a heart intact like you did.
Normally, the heart will have been cut open, pierced through, or even completely burned to a crisp.
To obtain proof of killing a giant, you need to store some of the Heart's Blood in the badge before it runs dry.
If you obtain an intact heart, there's no need to