Quote Originally Posted by zapan View Post
That manga was posted on the tumblr Manga and comics Ballbust, I do not know the name of the artist either.
http://mapel76.tumblr.com/post/10616...-xmas-everyone
http://mapel76.tumblr.com/post/106165537718/part-2
Yup, that's Pelmar's tumbler.

And apparently, the artist operates under the pen name of "Pecan", as near as I can tell.