Lirus and Lirie

They are two split personalities within one body, who happen to have different appearances and opposing personalities. Lilis is sweet, kind, but airheaded and also an accurate fortune-teller, whereas Lilie is mischievous, rude, and acts like a tsundere. She also enjoys to cleverly annoy and irritate others when she does fortune telling. Their personality switches fromwhen they hit their head, or when something mentally shocking happens.

(Source: Conception Wikia)