When aspiring manga artist Chika's storyboards get rejected, she ditches her desk for an adventure. Armed with a quirky social media poll, she sets off on a spontaneous journey of random crowd-sourced destinations. From hilarious mishaps to heart-warming encounters, Chika discovers inspiration, friendship, and herself, one unpredictable stop at a time.

In a flooded world, a boy rescues a robotic girl from the sea. Grateful, she vows to be his "leg" until fulfilling her former master's order, leading to an unforgettable summer adventure.