ルックバック (룩백)

Fujino is a fourth grader who draws a manga strip for the school newspaper. Her art makes her the star of the class, but one day she's told that Kyomoto, a student who refuses to come to school, would also like to submit a manga for the paper...

(Source: MANGA Plus)
Note: The one-shot was compiled in a special volume, released on September 3, 2021.