The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From Digital Advantage Corp.:
Deep inside the labyrinth of modern Tokyo, nestled somewhere in the sprawl of neon, instant noodles, and kimono-clad denizens, in a building that knows no fire code standards, toiling away around the clock stands one man: the system administrator. Waging a never-ending battle, the "Sys Admin" strikes terror into the hearts of computer viruses, makes short work of scheduled data back-ups, and understands complex technologies so that his superiors won't have to."Mr.ADMIN" is the English version of Japan's "Ganbare! Admin-kun" weekly four-panel web comic. Stories usually revolve around the IT staff at an unnamed company in a shabby building somewhere in Tokyo.This app contains 100 episodes in it. No connection required to read.This is a glimpse into the world of IT workers in Japan. Enjoy!