Love Like the Falling Petals

Haruto Asakura falls in love with hairdresser Misaki Ariake and asks her out. Watching Misaki Ariake work hard to achieve what she wants, Haruto Asakura, who almost gave up his dream to become a photographer, begins to pursue his dream again, but Misaki Ariake is diagnosed with a disease that ages her 10x faster than normal.
(Source: AsianWiki)
~~ Adapted from the novel "My Lover, Like Cherry Blossoms" (桜のような僕の恋人) by Uyama Keisuke (宇山 佳佑).