Hired by NHK following her 2010 graduation from TUFS, Kuwako began her career at NHK
Nagano, where she served three years as a temporary correspondent and a host for local programs. She then served in a similar capacity at NHK
Hiroshima;
Waratchao!, a program for preschoolers, was the first program to feature her regularly. In 2015 Kuwako was assigned to Tokyo and appointed to serve as the host's "assistant" (sidekick) on NHK's much-watched
Bura Tamori travelogue, a move that boosted her profile nationally. She also appeared as a presenter on news shows like
NHK News 7 and
Shutoken News 845. Later Kuwako anchored
News Check 11 with Yoshio Arima from April 2016 to March 2017, and from April she and Arima began anchoring
News Watch 9. She stepped down from
News Watch 9 in April 2020 and, trading places with
Mayuko Wakuda, began anchoring
NHK News Ohayō Nippon, an early-morning news program. In 2020, Kuwako narrated the closing travelogue segment of the year's
Taiga Drama,
Kirin ga Kuru (English title:
Awaiting Kirin), and starting hosting with
Takeshi Kitano the infotainment show
Takeshi no Sonotoki Camera wa Mawatte Ita (
Takeshi Presents: Camera Was Rolling At That Time). NHK announced on February 9, 2022, that Kuwako would leave
NHK News Ohayō Nippon in April and begin hosting a revived version of
Close-up Gendai, an in-depth current affairs program. ==Personal life==