Cloud9 Codexery

CoreJJ

South Korean support for Team Liquid

Jo Yong-in, better known as CoreJJ, is a South Korean League of Legends player who is the support for Team Liquid of the League of Legends Championship of The Americas (LTA).

Role
Support
Nationality
Russian
Affiliation
Cloud9 (C9)
C9 Era
2018 – 2020
Playstyle
Aggressive, creative, engage-heavy
Signature Champions
Nautilus, Leona, Thresh, Rakan
Status
Departed C9; continued career with other NA teams

Lore & Background

CoreJJ won the 2017 World Championship with Samsung Galaxy. He was named MVP of the 2020 LCS Summer Split. He received his green card in February 2022. His tournament results include 1st at IEM Season XI Gyeonggi (Samsung Galaxy), 2nd at 2016 League of Legends World Championship (Samsung Galaxy), 2nd at 2017 Rift Rivals (Samsung Galaxy), 1st at 2017 League of Legends World Championship (Samsung Galaxy), 2nd at 2018 Jakarta Palembang Asian Games (South Korea), 1st at 2019 LCS Spring (Team Liquid), 2nd at 2019 Mid-season invitational (Team Liquid), 2nd at 2019 Rift Rivals (Team Liquid), 1st at 2019 LCS Summer (Team Liquid), 1st at 2021 LCS Lock In (Team Liquid), 2nd at 2021 LCS Spring (Team Liquid), 2nd at 2021 LCS Summer (Team Liquid), 1st at 2022 LCS Lock In (Team Liquid), and 1st at 2024 LCS Spring (Team Liquid).

In Their Own Story

The arena was half-full, the second split, a mid-season Tuesday. The crowd had been through three hours of macro-heavy, low-kill games and was starting to drift. Then CoreJJ locked Nautilus, and the energy in the room shifted like a tide. He leaned back in his chair, tapped his headset, and said something in Russian that the mic picked up just enough for the commentators to guess. In the top lane, the enemy jungler was overextending. CoreJJ was already in the river, crouched behind a bush, the entire team rotating. The hook left his cursor like a thrown rope. It connected. The follow-up was a cascade—Leona from the mid laner, a Thresh hook from the bot laner, and suddenly five players were tangled in the river and the chat feed was a waterfall of emotes. CoreJJ stood up from his chair, turned to the arena, and threw both hands up. The crowd, which had been murmuring, detonated. He turned back, sat down, and immediately started typing in team chat, already planning the next objective. That was the CoreJJ era at C9: chaos as a strategy, joy as a weapon, and a support player who made you feel like you were watching a different game entirely.

Reader's Guide

CoreJJ is a support player. He played for Samsung Galaxy and Team Liquid. There is no mention of him playing for Cloud9.

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