間性 is read as かんせい (kansei) and means intersex.
かんせい
kansei
にんげんせい
humanity
どうせいかんけっこん
same-sex marriage
まにあわせ
makeshift
まちがい
improper conduct (e.g. between man and woman)
まぎわ
(just before the) edge
まにあう
to be in time (for)
まにあわせる
to get (something) done in time
まちがえる
to confuse
まちがう
to make a mistake
かんいっぱつ
hair's breadth
まちがいない
reliable
まどり
layout (of a house or apartment)