It's ren's mom
WAIT THEN WHO IS SARAH
Sarah is an alias since she came to japan in secret
Yea
From the hints safe to say its rens mom . Like ren's and Lory's reaction and her urge to see son what makes her candidate. And according the joke Ku said " Julie said she got 3 months to live" proves she loves to play prank on people.
Can anyone remind me who juliena is + why does the president seem to have a huge reaction but ren doesn't?