I'm a Terminal Cancer Patient, but I'm Fine.

At 38 years old, Hilnama, a manga artist, is diagnosed with colon cancer. Never one to lose hope or give in to despair, she begins cancer treatments despite the deadly diagnosis. But when going through such a grueling process, it can be difficult to keep a positive outlook... When faced with the struggles and trials of life, Hilnama turns to what she knows: writing and creating manga again, drawing herself as a rabbit in a world of humans and hospitals.

[Official English synopsis]