"The medicine here is enough to last Sister for the next two years..."
Mizuki Kaoru continued to speak.
Years ago, Suzuki Yuki was unknowingly struck with a deadly poison, and Suzuki Zetsu desperately searched everywhere for an antidote.
Eventually, he found the Mizuki clan, who specialized in the research of various poisons.
In her hands, she held the secret recipe that could slow the poison's effect on Suzuki Yuki's body and extend her life.
The only condition she demanded was to stay by his side.
He agreed. Over the years, Suzuki Yuki had to take the medicine she provided every month.
Therefore, every month, Suzuki Zetsu would visit her to collect the medicine.
She thought that, in time, this man would become hers.
But nearly five years had passed, and in his eyes, there was room for no other woman but Suzuki Yuki.
She had spent nearly five years trying to earn even a shred of his love.