Yasashisa Ippai no Tsuchi no Ue de

Nana was raised by robots, and is now a research student living with Hachitsu, a gifted scientist also raised by robots. One day, Hachitsu collapses from a disease. In order to gain the time to develop a cure to save him, Nana proposes they place him in cold sleep. Hachitsu goes to sleep, leaving be