The organization's League of Legends division began as an unsponsored amateur team named FocusMe, competing independently until it was acquired and renamed by DetonatioN Gaming.

That victory gave the team an invitation to South Korea's NLB Summer 2014, where they lost in the first round of the Gold League to Prime Sentinel.

Afterwards, DetonatioN FocusMe placed first in the 2014 LJL Summer Split's regular season, moving on to the grand finals, where they defeated Rascal Jester 3–2 in a close series.

In the 2015 LJL Season 2, DetonatioN FocusMe placed second but later won the grand finals once again, securing a spot in the 2015 International Wildcard Tournament in Turkey.

For the 2016 LJL Spring Split, DetonatioN FocusMe acquired jungler Yun "Catch" Sang-ho and support Han "viviD" Gi-hun from SBENU Sonicboom.

Unlike the previous split, DetonatioN FocusMe won the grand finals against Unsold Stuff Gaming 3–1, qualifying the team for their first ever appearance at the World Championship.

In the 2019 LJL Summer Split DetonatioN FocusMe finished first in both the regular season and playoffs, defeating V3 Esports in the latter to qualify for the 2019 World Championship.

[14] For the 2021 World Championship play-in stage, DetonatioN FocusMe was drawn into Group B, along with North America's Cloud9, Taiwan's Beyond Gaming, Russia's Unicorns of Love, and Turkey's ⁠Galatasaray Esports.

DetonatioN FocusMe tied Cloud9 for first in their group and, after winning their tiebreaker match, became the first LJL team to advance to the main event of a World Championship.