Vivian only learned about her rare blood type after joining the organization.
If she ever suffered massive bleeding and there was no matching blood available, it could be life-threatening.
So, after her mentor took her in, he'd make her donate blood every year to store it in the blood bank—just in case.
Thanks to that, she’d never had any issues over the years.
What she didn’t expect was that Tristan had the same Rh-negative rare blood type as her.
"What about you guys?" Vivian tried to stay calm as she turned to ask Julian.
"We all take after Dad’s blood type. Only you and your fourth brother—that’s probably because you’re twins—both got Mom’s rare blood type instead," Julian replied casually.
"I see..." Vivian responded faintly, then went quiet, turning her gaze ou
