탐구생활 /tam-gu-saeng-hwal/
Deep-dive research / Obsessive investigation
Obsessively researching a topic or person — often used when fans deep-dive into an idol's history, content, or personality. Literally 'research life.'
Examples
최애 탐구생활 시작
Starting my deep-dive research into my fave
탐구생활 하다 새벽 됐어
It became dawn while I was deep in research mode