Hong Kong (CNN Business) It sounds like the plot of a science fiction movie — but Japanese billionaire Yusaku Maezawa is serious about his search for a special someone to join him on a space voyage to the moon.

Having recently split up with his girlfriend, fashion mogul Maezawa has launched an online appeal for a female "life partner" to accompany him on SpaceX's maiden tourist voyage — a slingshot trip around the moon tentatively scheduled for 2023.

"As feelings of loneliness and emptiness slowly begin to surge upon me, there's one thing that I think about: continuing to love one woman," 44-year-old Maezawa wrote Thursday in an online appeal.

"I want to find a 'life partner.' With that future partner of mine, I want to shout our love and world peace from outer space."

[WANTED!!!]

Why not be the 'first woman' to travel to the moon?#MZ_looking_for_love https://t.co/R5VEMXwggl pic.twitter.com/mK6fIJDeiv — Yusaku Maezawa (MZ) 前澤友作 (@yousuck2020) January 12, 2020

Maezawa, who founded Japan's popular online shopping site Zozotown, is worth an estimated $2 billion, according to Forbes

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