|Eyes||, Black, White|
|Personality||, Energetic, Hotblooded, Kansai-ben, Outgoing|
|Role||, Communications Officer, Robot|
|Visual novels||Side character - Gakuen Tokkyuu Hotokenser|
|Voiced by||Shindou Naomi|
A loud communications device Genpaku gave to Kureha. A sensor inside it allows it to react when monsters are in the vicinity. When not in use, Gomukeshi-kun resumes its form as an ordinary eraser.