She started her own comic strip,, in 1946. lieutenant reached national circulation via the Asahi Shimbun in 1949, and ran daily until Hasegawa decided to retire in February 1974. She also created the comic strip Ijiwaru Bā-san (Granny Mischief).
All of her comics were printed in Japan in digest comics.
By the mid-1990s, Hasegawa"s estate had sold over 60 million copies in Japan alone. Was a popular postwar comic strip depicting the life of, a fictional Japanese housewife.
Her comic strip was turned into a dramatic radio series in 1955 and a weekly animated series in 1969, which is still running as of 2015. Selected comics were translated into English, under the title The Wonderful World of Hasegawa died of heart failure on May 27, 1992, at the age of 72.