Angel Halo

The Angel Halo is a special weapon wielded by Luka, replacing his Iron Sword (although he still keeps his former weapon). It is extremely grotesque-looking, and as Luka puts it, "looks like [the angels are] being tortured". It was given to him by Alice the XVI (Sixteenth), noticing he has problems fighting to his fullest. The blade was created with 666 melted angels, bearing their power and resentment; as a result the sword does not inflict fatal injuries, but has the power to weaken and seal creatures (ie- an Earthworm Girl twirls into a normal earthworm, a human turns into a scarecrow, an Elf shrinks, etc.), although they can return to normal once they have accumulated enough power. Alice mentioned that because it was forged from angels, it can be used against them, though the exact effects it would have on an angel are not yet shown. This makes it the perhaps only weapon with which a human or monster can injure an angel. For some reason, it makes eerie noises, which Alice says is expected.

According to Lilith & Lilim, Heinrich was the Angel Halo's previous wielder and sealed them with it.

When Luka reached Sabasa, a guard noticed his sword. Luka immediately assumes that the sword just got him into trouble, although the guard assures it isn't like that.

As Luka nears the Criminal's Jail, the Angel Halo suddenly shines with light.