Renagender is a xenogender for those who are hyperfixed on, have a special interest in or are kin with Ryūgū Rena (Anglicised:Rena Ryuuguu) from Higurashi no Naku Koro ni (Anglicised Higurashi When They Cry). It is intended to be used by neurodivergent individuals, but is not exclusive.
History
Renagender was coined by Twitter user RADIANTROAR on October 12, 2020[1].