Tiara (ティアラ) is the main character of the Lapis Re:Lights series. She is the leader of the unit, LiGHTs. A bright and cheerful mood maker. Her country of origin is Waleland. Because she was prone to sickness as a child, she has a strong desire to cheer people up by singing. Due to having to stay in her room a lot when younger, she came to love flowers after taking care of the plants she received from her older sister. Also because of this, she joined the gardening club at her academy, although she looks after many dangerous plants such as "Mandragoras that want to sing" and "Carnivorous Tulips". She is the leader of LiGHTs. Her fellow member Rosetta is her roommate and childhood friend. Although she looks like a normal girl among special classes, she is actually the second princess of Waleland. Admiring her sister as the first princess, she became a witch, but no one except Rosetta knows her true identity.