Lillia

is a mysterious young mage and a former apprentice of Merlin. She is an original character made for Hikari to Yami no Grand Cross mobile game. She's a member of the Seven Disasters.

Apparence
Lillia is a young woman with light skin, dark purple eyes and short black hair.

After summoning absorbing a mysterious dark powers, Lillia's eyes gets a lighter tone and her hair becomes longer, turning light blond in the process.

History
Lilia was a former apprentice of Merlin, however, after enraging with her master, she left Merlin and started to learn magic by herself to, maybe one day, be able to surpass Merlin as a magician.

At some point, she joined the Seven Disasters and together, they managed to summon a mysterious demonic entity that would cause Britannia's destruction, however, they got caught before achieving their goal and were sentenced to prison but were able to escape the Royal Guards and became fugitives.

Meanwhile, Lilia still tried to summon the evil entity by herself but ended up creating a portal connecting Britannia to the Jura Forest, where she met Rimuru Tempest. There, Lilia was able to partially summon the mysterious being, absorbing some of its power and becoming a demon in the process. She then faces the Seven Deadly Sins and Rimuru.

Abilities and Equipment
Little is know about Lilia's magic powers, however, she seems to be extremely powerful due to her ability to summon creatures from distant worlds.

After absorbing the demonic energy, her power growns so grandly to the point that she is able to face the Seven Deadly Sins, Rimuru Tempest, Millim Nava and Benimaru alone.

Trivia

 * Merlin mentions in OVA 2 that magicians doesn't posses healing powers, however, Lilia is able to cast a healing spell named Eroica (エロイカ).