Lilium Mode

Lilium Mode is an Easter Egg Mode in Yandere Simulator.

Appearance
Ayano will become naked, wearing a metal helmet and acquiring transparent, ghostly arms that wrap around her body.

Gameplay
They function like the Pain Demon's ritual, dismembering any student that gets close to her.

Trivia

 * Lilium Mode is based on the hymnal-like opening theme for the Elfen Lied anime.
 * The person behind the helmet is actually Lucy.