SUDDENDEATH, formerly known as PUCCHIMO (プッチモ), is a collaboration group formed in December 2018.
They described themselves as being not an idol unit, but a collaboration group, aiming to do collaborations with other groups and bands.
The group started as PUCCHIMO and disbanded in May 2019. In June 2019, they started again with a new lineup as SUDDENDEATH, but they went on a hiatus shortly after that, when Senanan got married and gave birth to a child.
