One of IRyS's mascots and the counterpart to Bloom. A black cat with a triangle mouth and a single blue eye mirroring its owner’s heterochromia. Its fur is patterned like a tuxedo with accompanying bowtie. Has a single detached wing on its right side.
Gloom was designed by Hololive English vtuber Tsukumo Sana with input from IRyS and her chat.