Connector having connection assisting slider mounted in housing

A connector, comprising:

• a first housing and a second housing to be connected to each other;
• and
• a connection assisting slider to be mounted into the first housing,
• wherein:
• the second housing includes a cam pin,
• the connection assisting slider includes a cam groove extending from an entrance open in a front surface of the connection assisting slider to a back end, the front surface of the connection assisting slider facing a front direction,
• the cam groove has a connection cam surface to be pushed by the cam pin in the front direction toward the first housing and a recess connected to an end of the connection cam surface on a back end side of the cam groove, the recess being recessed in the front direction at a front portion of the back end side of the cam groove and extending more in the front direction than the end of the connection cam surface, and
• when the first and second housings are in a connected state, the cam pin is positioned at the back end of the cam groove and the cam pin is arranged not to contact an inner surface of the recess.