Jinmyaku Cheat de Hajimeru Hitomakase Eiyuutan (Manga)

is a Japanese manga series that adapts the light novel series written by Yusaku Sakaishi. The adaptation features art by Tagi Motowashi. It was serialised in Dengeki Daioh and published under the Dengeki Comics NEXT Imprint.

Synopsis
Net, a young man whose true skill lies in his large personal connections, which has allowed him to achieve great feats from behind the scenes. One day, his own king runs out of patience with him, and banishes him from the legendary heroes' party. Now he has to start again as an adventurer, but he plans to make full use of his connections with powerful knightly orders and other races. Meanwhile, the king finds the heroes' party to be full of self-absorbed individuals, with Net's loss fraying their bond with each other.

(Source: Anime News Network)