On December 27, Mina uploaded two pictures of her organ donor registration cards for both Korea and Japan.
Mina was seen wearing a black turtleneck, holding organ donor's registration cards.
She also wrote, "Thank you ONCE for always supporting me. Thank you so much, everyone."
Many fans are moved by Mina's kind act.
TWICE made a comeback on December 11 with a repackaged album 'Merry & Happy' and is currently promoting its new single 'Heart Shaker'.
(Credit= 'twicetagram' Instagram)