I still don´t get why everyone is so into lucaon´s business. It doesn´t feel sincere

They're all overprotective of him because he's his family's sole survivor and the one target of Intron's that they're all already aware of. Plus, he's the most vulnerable to complete his transformation and become a zero if they are not careful. Given all that, it makes sense his loyal friends would be super vigilant .

I get that, but i still feel like we are missing something