With only a year left to live, 17-year-old Akito finds new meaning in life by bringing joy to a terminally ill girl who has just six months remaining.

In postwar Japan, a traumatized former fighter pilot joins the civilian effort to fight off a massive nuclear-enhanced monster attacking their shores.

Told in three interconnected segments, Takaki tells the story of his life as cruel winters, cold technology, and finally, adult obligations and responsibility converge to test the delicate petals of love.