Smogmella is a yo-kai which is basically like a ghost. Yo-kai can only be seen with the help of the yo-kai watch. Smogmella is a shy yo-kai. Smogmella has the power to make the place around her very foggy.  Smogmella is part of the mysterious tribe (each yo-kai are separated I to different Tribes).Smogmella has a fear of the wicked yo-kai because they possessed her one time. If you befriend Smogmella she will give you her medal which you can use to summon her at any time