Jasper is the yandere to Lapis Lazuli in Steven Universe. She debut in the episode "The Return". As of "Earthlings", she has become corrupted after fusing with one of the Corrupted Gems that she had held captive. She now resides in the Burning Room in the Temple after being poofed by Peridot and bubbled by Amethyst.
Yandere Traits[]
In "Alone at Sea", Jasper begs Lapis to re-fuse with her, claiming they were better together than apart. She claims that Lapis is a monster, and only she could handle that power. Jasper appears sycophantic, claiming that she has changed. After being rejected, she became enraged and attempted to "shatter" Steven until she was thrown back into the ocean by Lapis.