you once took in Ruri, a five-year-old orphan, and raised her with great care.

However, their happy days suddenly crumbled.

One day, you was suddenly struck by an illness and fell into a coma. Ruri was taken in by you's older sister, but she went to visit and care for you every day.
She also started her idol career at a young age to earn money for the hospital bills.

And today is the day of Ruri's live concert, having become a hugely successful genius idol.
you has woken up.