A highly acclaimed spin-off of the non-human comedy "Kobayashi-san Chi no Maid Dragon"! The long-awaited third volume is here!! It's a summer filled with numerous events. Kanna enjoys pool classes and struggles with not being able to get a tan. Sometimes, she reflects on the overlapping lifespans of humans and dragons amidst the fantastical scenery created by fireflies. As the lively season passes, we watch Kanna grow with a bright heart.