This tag is used when two prominent characters love the other limitlessly. Their love has no conditions attached to it and they will love their partner(s) no matter what.
I fell in love. Her name was Shirasaki Yukino. I could only look at her from a distance. However one day I heard that she already had a boyfriend. Even if I love her, I can’t have her. The devil sent me an invitation. I can make her mine!