I read it more than a year ago.
A guy first has the power to make a transparent round bubble like thing and everything that goes in it or touches it disappears. As the story goes on he can make a bigger bubble.
Then something shows up in the middle of his forehead - I think it was a third eye.
I don't know if I am mixing two manga together or not but I think later on the more power he uses he turns into an ET (alien) looking guy.