How many chapters does Marin to Sadao have?

How many chapters does Marin to Sadao have?
Marin to Sadao has 13 chapters across 1 volume.
Is Marin to Sadao completed?
As of now, Marin to Sadao has finished.
When was Marin to Sadao published?
Marin to Sadao was published from March 24, 2016 to August 8, 2016.
What kind of manga is Marin to Sadao?
Marin to Sadao is a manga, originally from Japan.