TsukkiKage is the term used to refer to the romantic relationship between
Kei Tsukishima in the dominant role (seme) and
Tobio Kageyama in the submissive role (uke)
from the Haikyuu!! fandom.
Sometimes the ship's name is written as TsukiKage, KageTsukki, KageTsuki, Kei x Kageyama or Tsukishima x Kageyama.