Harapeko Oyako to Motokare Yanushi

Story:

36-year-old Takaharu lives alone. After graduating from Art College, he has been living a quiet life while painting pictures. One day, his ex-girlfriend Kyou, whom he broke up with 17 years ago, comes to him with her daughter Minori and asks him to let them stay at his place. As in their college days, Kyou is attracted by the delicious food, and so the three of them begin to live together. (MangaDex)