Artist's commentary
Someday, Under a Bright Sky Chapter 1 extra①: "A certain day at the arts room"
Although it's a detour from the main story, this is also important.
One by one, we learn new things.
Read from the beginning (Chapter 0) → post #2402716
Previous (Chapter 1, part 1-4) → post #2445895
Next (Chapter 1 extra②) → post #2456435