I Log In Alone

I Log In Alone summary:

11-year-old Jung Si-woo never had any friends, because there was nothing interesting about him. He lived an average life as an average person in an average world. But suddenly, the earth faced a great change when Mysterious floating 'Sky Castles' appeared.  The 'Sky Castles' granted some people wings and powers, but unfortunately, Si-woo wasn't one of them.