[m] I'm looking for a Shounen Manga about a Young Boy and a Gashapon Demon which he releases from a Gashapon/Gachapon Capsule he gets from a Gashapon/Gachapon Vending Machine.

IT IS NOT, I REPEAT, NOT Yo-kai Watch! I'm pretty sure the Manga I seek came out before that was released. Yo-kai Watch is about a Young Boy and a Blue Ghost. The Supernatural Creature in this Manga is a Full Bodied(With Legs) Demon!

I first saw it on a Blogspot website that did monthly posts about Anime and Manga Releases. It was in 2011 I think, around the same time when Drc2, Kyokou no Ou, and Seigi no Mikata were released, because I remember discovering those three on the same Blogspot website.

The cover had a Bluish Male Demon on one side of it, wearing a Big Hat. The other side showed the Young Boy who releases him. There was a Gashapon/Gachapon Vending Machine right in the middle of the two.

Please help me find this Manga! I'm collecting Anime and Manga like it, about Human and Nonhuman Bonds, Capture/Containment Items, and so on, in order to Research and Develop my own Version(s) based on such concepts and themes.