Laira Lorelei

Laira is the current empress of the Seiren after her mother passed away. She entered into a cold sleep and has been sleeping for 800 years. She awakens from her cold sleep and willingly joins Oceando, along with the Seirens and Dhampir, into an alliance with the Elchea Federation. Due to her immense fertility as the Seiren Empress, she is able to reproduce even from the minute amount of soul essence found within a single lock of a male's hair. This is the case in which Sora and Laira now have a daughter despite no sexual intercourse and within a very fast gestation period. (Source: No Game No Life Wikia)