Ritsu, who has gotten somewhat chubby from eating her roommate Ruka's cooking, becomes determined to lose 7.5kg in three months. When Ritsu's attempt at a salad-only diet proves destructive, Ruka sets her on a new diet that allows her to eat delicious meals that are under 400kcal each.
Take Responsibility For My Stomach! is a completed manga by Nikumaru, first published in 2021. It blends comedy, girls' love and slice of life. You can read all 15 available chapters of Take Responsibility For My Stomach! online for free on MangaPulse; the newest is Chapter 12.5, added 2022-12-11. The series is finished, so you can read it from start to end in one go.