A diamond ring is often given as a symbol of betrothal, representing an agreement to be wed. The diamond ring effect appears when the moon eclipses the sun, highlighting the topography of the lunar surface for a moment before the light disappears entirely.

Based on the timeline where Nightmare Moon won from the season 5 finale.

An entry for the (Un)Happy New Yuri Contest (pet the koi), under the categories Toxic, Doomed, and Unrequited.

_{Contains the kind of multilayered power dynamics you typically get when an evil presence dominates someone's body, and uses said body to dominate someone else's body.}