Jinusean member Sean confessed the aftereffects of the 815 run.

On Aug. 18, 2026, Sean posted on his social media, "Aug. 15, 2026. After delivering an 81.5km thank-you letter, I lost 5kg," along with photos.

In the released photos, Sean revealed his weight measured at 4 a.m. and at 3 p.m. on Aug. 15, 2026. That day was when Sean ran the "2016 815 run" to commemorate Liberation Day. Sean has continued the 815 run for seven years, and the cumulative donations for housing improvements for descendants of independence activists amount to 10.6 billion won.

That morning Sean weighed 73.2kg, and in less than 12 hours he had lost 5kg, showing 68.2kg. Losing 5kg at once shows the aftereffects of the 815 run. Nevertheless, Sean expressed, "I am grateful that I could give my best. 'Because someone had to do it.' Thank you. I will not forget it."

Meanwhile, Sean is married to actress Jung Hye-young and they have two sons and two daughters.

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