Shougakusei ga Mama demo Ii desu ka?

Tokuyama Takehiro is a young game programmer who has taken on his first big project as the lead programmer. Not only that, he is also pulling double duty as the project's director. He finds the stress of his first big project overwhelming and he ends up using food as solace at a local okonomiyaki shop. There he meets a precocious young girl who seems to take an instant liking to him and seems to know far more about him than anyone should, except perhaps... his dead mom?

(Source: Mangadex)