Watermelon Mech Horse's Revenge in Snowy Streets

In a snow-covered alleyway of Japan, a monstrous horse born from discarded beer cans and mechanical parts awakens. Fueled by rage against human wastefulness, it crushes a car underfoot while roaming the streets. Its body resembles green watermelon flesh, with scattered cans marking its path. What will this beast bring to human society? A tale blending environment and technology that sparks the imagination.