Haru and Natsu are not human. They do not know what it means to be anything but a robot.
Abandoned by their former owner, Haru and Natsu are welcomed by a dedicated researcher named Masa in a quiet laboratory with gentle lights. Haru desires to feel, seeks to learn how to behave like humans, and longs to understand what love truly is. Natsu merely worries that they will be forsaken again. While Haru pursues optimism, his partner remains submerged in bleak thoughts. Time and again, they pose the same query: what is love?
