Linkage Ring (sometimes stylized as LiNKAGE RiNG) is the first full-length studio album by Japanese pop rock duo Garnidelia, released on January 21, 2015 by DefSTAR Records and Sony Music Entertainment.

[1] Originally, Maria had recorded solo tracks for anime programs including Kamisama Kazoku and Hitohira, while Toku had collaborated with successful Japanese artists including LiSA and Angela Aki.

In 2012, Garnidelia recorded another self-released mini-album entitled Pluslights -21248931-, which was also released on online stores, but failed to gain any recognition and chart positions.

[5] In 2013, Garnidelia had recorded a song entitled "COLOR" which premiered on the anime television series Freezing and achieved prominent success from viewers.

[3] In March 2014, the duo signed to DefSTAR Records and had released their first commercial single "Ambiguous".

[7] According to CD-Data Magazine, the reviewer commented on the influence off dubstep music in the opening track "PRIDE" and "Lamb."

A reviewer from the publication CD-Data Magazine was positive and awarded the album four stars out of five.

[7] According to the review, he praised the mixture of rock music and electronic dance music, which was a prominent feature in Japanese acts and commented "you want to focus on the experiment of a pop sense [...]"[7] Based on composition, lyrical content and commercial appeal, the reviewer awarded each category four stars out of five.

In its second week, the album dropped dramatically to number forty-three, with total sales of 9.536 units.