Human Academy Robot Classroom As you can see from the images, there is some soiling. I purchased this and used it for about six months. Not all the parts are complete; some are missing, and some may be extra. Motor operation has been confirmed. Some of the texts are incomplete. The May text is missing. The September text, pages ②21 and 22, are missing. Names and initials are written on everything. I will black out the names in the texts before shipping. Please purchase only if you understand that this is a used item.