Kamichama Karin: Volume 4

Karin is at the hot springs, when she is suddenly attacked by Kirio Kasuma(aka Mr Glasses Man). Of course she transforms, but for some insane reason,someone swapped her ring with Kazune's. (He comes out looking insane with his hair in pigtails!!!) Later in the book, she realises that she actually likes Kazune,and the real reason that she always went around with Kirika was to annoy him. Kirika, however turns out to be a girl? Why did she hide it?? Find out in book 5.

well we start off with karin wondering why her ring feels diffrent soon "mr. glassess man" shows up and wants to fight karin she transforms in to a god form but shock wait its not her god form its kazune's god form, (sence change)we go from karin to kazune who is with michiru when suddenly kazune feels that karin has changed into god form so he changes two to go help her but second shock he is in karins god form and looking how do you say really wierd and freakedhe soon finds out that michiru changed his and karins rings. buy the book if you want to know how it goes and dont read this if you want to not hear a major spoiler. like i perdicted kirika is a girl.