Na Baek-jin, a key character in Weak Hero Class 2 , dies by the end of the season. His death occurs after a significant battle known as the "war of Eunjang," where Baek-jin and his gang, the Union, are defeated by the students of Eunjang High School led by Baku and Si-eun. Following his defeat, Baek-jin is hit by a truck and dies from his injuries

. The series and the original webtoon both confirm Baek-jin's death, although the exact circumstances remain somewhat ambiguous. The post-credits scenes hint that Choi Chang-hee, the mafia boss who oversees Baek-jin’s illegal activities, may have orchestrated Baek-jin’s death as punishment for his failure and to maintain control over the gang business. Funeral wreaths from Choi Chang-hee and his search for a new Union leader support this theory

. Despite some fan theories suggesting Baek-jin might have faked his death—citing suspicious smiles from his associates at the funeral and differences in his appearance from the webtoon—both the show and source material strongly indicate that Baek-jin is indeed dead

. In summary, Na Baek-jin died after losing the gang conflict, likely killed or eliminated due to his failure by the mafia boss Choi Chang-hee, marking the end of his arc in Weak Hero Class 2