In her infancy, Sumiko developed a disease called Presbyucusis, a sensorineural hearing loss disease. As she gre w older, her auditory pickup up certain decibals of sound became so deteriorated, that by the age of nineteen, without hearing aids, she was unable to pickup any sounds that were not absurdly loud.
This disease had led her to many kids in her elementary and middle school classes not understanding her condition and bullying her because of it. She was subject to many restless days at school where her fellow classmates would toss her notebooks away or steal her stuff from behind her back without her noticing.
Her home life was rather nice, her mother and sister were a great help to her and supported her throughout programs implemented at school to educate the other students in sign language and what hearing loss is and it's characteristics.
These implementations led to more complications among the students, they berated her more and blamed her for the changes they had to indure. This bullying she received was uplifted once she entered high school, as she had been sent to a different one in the region. At this school, she was placed in the special education room to get specific schooling tailored to her condition. She graduated high school in the summer of 2017.
As a graduation present, her mother took her and her sister on a flight to reach their homeland in Japan, the itenerary of the flight was to spend some time in Europe, then grab a plane out of the Ukraine and from there fly to Japan. Her mother passed away soon after preparations were being prepared. Sumiko and her sister decided to delay the vacation until they could take care of their mother's funeral preparations. This whole process and the expenses of it took up their flight and travel money. Two years later, the flight was finally able to be taken.
This process took a lot longer than anticipated due to the outbreak. Sumiko and her sister had gathered a lot of supplies and materials for a shady man who called himself "Driver". He owned an older model C-47 dual propeller plane. He agreed to take them over the Atlantic and into Europe. Their flight was very easy going and they arrived at a private airstrip rather easily. The infected were in lower numbers in this area and made the refueling process a bit easier. After the C-47 had it's needed fuel, they continued the flight over the Green Sea. As the plane traveled over the Green Sea, it's older engines succumbed to their age. The plane's older engines could not hold up against the cold creeping into them due to the change in elevation along the Earth's axis. The plane, in t's last fit of flight plummeted into the Green Sea near the Chernogorsk harbor.
Sumiko and her sister survived the crash, Sumiko was unconscious but her sister had pulled her ashore. When Sumiko awoke though, her sister was nowhere to be found, aside from a note that read" Should you awake soon, I'll be looking for supplies."
Reading this, Sumiko set out on a determined quest to find her sister.