Sterika

A deep connection known as a sterika existed between two individuals of the Adnerem species hailing from the planet [Adner]. This bond, exclusively between members of the same steris, which designated an Adnerem family, was completely platonic. However, the Adnerem involved developed such a profound intimacy that they perceived themselves as a unified being. Approximately ten percent of the Adnerem population participated in a sterika at any given moment. While Adnerem didn't actively pursue a partner to create a sterika, unlike other species seeking romance, those Adnerem not part of a sterika often displayed signs of longing for the intense connection shared by those who were. It was exceptionally uncommon for Adnerem to develop any other form of significant emotional connection with another living creature.