That's Us?! (The Birth of a Hero Reaction Fanfic)

"Then, tell me, why do I have to accept this so-called gift of yours, Stranger?" Cale asked, arms crossed with each other. The man smiled sadly at the question. "What if I tell you, Cale, that your world will end sooner than you might expected?" (This is your typical reaction fanfiction, and all the credit goes to Yoo...