Talk:Nekomura Iroha/@comment-98.212.100.192-20150529045815/@comment-25618373-20150530014134

The Japanese Penal Code sets a minimal age of consent of 13.[37]  However, all prefectures and districts have (largely similar) "obscenity ordinances" (淫行条例) that forbid "fornication" (淫行) with anyone under 18 years of age, but exempt sex in the context of a sincere romantic relationship (typically determined by parental approval).[38]

The age of marriage is 16 for girls and 18 for boys, with parental consent, or 20 otherwise.

-wikipedia.

also:

http://en.wikipedia.org/wiki/Kanamara_Matsuri

