With the growing popularity of drones, we start to see more wearable drone concepts. For the user to carry around a drone, it must be lightweight as well as have a small portable form factor. However, these constraints affect the battery capacity and therefore decrease the flight time of the vehicle. With Aerial Tethered Companion, a bigger battery is installed in the user's backpack allowing to extend significantly the flight time. Moreover, without an on-board battery, the quadcopter can carry more payload. Such system can be used in various scenarios for example in sports augmentation where the user would see itself through the drone's camera. Furthermore, Aerial Tethered Companion can be applied in telepresence where an external user would be able to see and navigate around the local user.