noun
downshifter
A person who has deliberately chosen a simpler, less stressful lifestyle, often by reducing work hours or consumption. Related to the concept of ダウンシフト (downshifting).
See also: ダウンシフト
彼は都会の忙しい生活をやめて、田舎でダウンシフターとして暮らしている。
He left the busy city life and lives in the countryside as a downshifter.
ダウンシフト is the act or concept of downshifting, while ダウンシフター refers to the person who practices it.
Borrowed from English 'downshifter', a term popularized in the 1990s to describe people who prioritize quality of life over career advancement.