Luna finds herself slowly going into madness as she continuously denies Celetia's death and refuses to take over the previlage of raising the sun. Princess Twilight Sparkle tries to help Luna cope, only to be pushed away as a result of each approach. However, Twilight refuses to give up on the Moon Princess and vows to help her get back on her hooves and take over her sister's role. Celestia would've wanted it to be this way.