"Older Sister's Marriage") is a Japanese slice of life romance josei manga series written and illustrated by Keiko Nishi.
It was serialized in Shogakukan's Flowers manga magazine from September 2010 to August 2014.
[1] Written and illustrated by Keiko Nishi, Ane no Kekkon was serialized in Shogakukan's Flowers manga magazine from September 28, 2010 to August 2014.
Top 20 Manga for Female Readers survey[24] and number 10 on the 2013 list.
[25] It was number 14 on the 15th Book of the Year list by Da Vinci magazine.