I'm The Only One With Cancer

Earth, 22nd CenturyThe incurable cancer that served as a nightmare for people one century ago is now just a rare but curable disease.With the world's development, there are now cures for all types of cancer. The Earth is now a planet with no more people suffering from cancer.Except for Zen.Diagnosed with a mutated cancer that was the only one of its kind at an early age, he sank in despair.That was until an opportunity which turned his curse into a blessing presented itself.What power would Zen gain from the disease that plagued him since his childhood?***The art is not mine, all credits to the original artist.