ChiLumi

Chilumi is the het ship between Childe/Tartaglia and Lumine from the Genshin Impact fandom.

Canon
Lumine first meets Childe in Archon Quest Chapter 1 Act 1. Lumine is escaping to avoid suspicion of being the culprit of Rex Lapis' murder. When she was at the stairs she stepped on shard of glass accidentally grabbing the guards attention. Unfortunately, she gets surrounded by the guards until she hears Childe's voice saying "Hey girlie-- Hold still," or in the JP dub Childe calls Lumine "ojou-chan". Childe then knocks all the guards unconscious and escapes with Lumine.

Fanon
This became a ship by the fandom seeing their relationship between each other by then, fanarts, comic dubs and fanfictions has been created by it. It also resulted about lots of them which means it has became a popular het ship in the fandom.