Pictures with a line that forms a [[heart]]-shaped loop. It's not really important if it's supposed to be an actual string, it may be a [[ribbon]], a typographical element or a background decoration, etc.

The equivalent Pixiv tag is ラインのハート, literally "heart made of a line".

[[Komeiji Satori]] and her sister [[Komeiji Koishi]] sport these frequently.

h4. See also

* [[string of fate]]
* [[heart tail]]
ラインのハート 心型轨迹