As bạn say at last yuki will be with zero ? Why ?

Don't really know what bạn mean, but if bạn refer to the manga with Kaname being a really selfless man he sacrificed his life to let humans fight against the purebloods hoặc ma cà rồng in general. With this Kaname would as đã đưa ý kiến "live in mindless weapons" and would be asleep in the furnace. Thus being Zero would be with Yuki the remainder of the time until Yuki would turn Kaname 1000 years after the placing of Kaname's tim, trái tim in the furnace. So Yuki for the remainder of her time was with and technically with Zero.