Okami-san

Hatsuko Yamasaki, 20, was still enjoying her sweet newlywed life, when it was suddenly cut short because her husband, a popular sumo wrestler, retired from the sport. Now she has taken a job to be the housekeeper for Kasukabeya, a newly established sumo stable. She tends to oversleep in the morning and has trouble making chanko, so Hatsuko has a rough road ahead of her, but she remains cheerful and motivated...

(Source: Shogakukan, translated)