If you're looking for manga similar to Eat-Man, you might like these titles.
Rock (Okajima Rokuro) was just a normal Japanese businessman, but through a series of unlikely events, he found himself part of the "Lagoon Company," a group of transporters who do a little pirating on the side. Together with Dutch, Revy, and Benny, he sails the seas of Asia aboard the modified torpedo boat "Black Lagoon. " Their base, the lawless city of Roanapur, is just barely balanced on the brink of outright war, controlled and occupied by criminal organizations from across the globe. At the head of the pack are Balalaika of Russia and Chang of Hong Kong. Our story finds Roanapur just a little while before Rock, with Revy in tow, is due to head back to his old home of Japan.
In the 22nd century, mankind has expanded into outer space. However, it was the Crushers who paved the way, performing jobs that ranged from terraforming to asteroid busting, warp lane plotting to transportation. These days, the Crushers still accept jobs of all kinds, so long as they're legal and ethical, and Crusher Joe's team is the best in the business! Joe, Alfin, Ricky, and Talos, along with the robot Dongo, take on jobs that require all the tools, tricks, and knowledge that the Crushers are known for. Of course, no job ever goes as expected. Whether it's rescuing prisoners trapped on an icy asteroid in a decaying orbit, or extracting a military officer charged with the safe keeping of a weapon of mass destruction from the clutches of insurrectionists, it's all part of the job to a Crusher, and that's before the mission goes sideways!
Rinka is a financially struggling high school girl living with her single father in Tokyo. One day, while going home from school, she sees a penguin flying in the sky towards the Tokyo Sky Tree. She chases after it only to find fish swimming in the air! One of the fish goes through Rinka and causes her to pass out. She wakes up to find that she has developed the ability to slip through solid objects..
Neither a utopia nor a dystopia, it’s still a world of nations at strife, as dominated by corporations as ever. Technology hasn’t made humans nearly obsolete, but rather bettered us, if you will, attaching to our bodies and even brains as enhancements—for those who can afford it. While reality may never become virtual, it will be increasingly networked and augmented. Navigate herein age-old questions about man that will return, not so ironically, in full force: What is the self? Is there such a thing as the soul?