Relation graph for Koi Iro Marriage

Note: Unofficial relations are excluded if the graph would otherwise be too large.

Koi Iro Marriage 2012-10-26 ja Hoshi no Ne Sanctuary 2013-08-30 ja Same settingPrimal x Hearts 2014-08-29 ja Primal x Hearts 2 2015-10-30 ja Same settingStudy § Steady 2019-09-27 ja Same settingOuchi ni Kaeru made ga Mash... 2017-07-28 ja Same settingLove 2 Quad 2011-09-30 ja Same settingSame setting