Euo-Seong Ryong was friend with Lee-Sun Sheen's older brother. Euo-Seng Ryong helped Lee-Sun Sheen before he started to work in government. Also, he helped him a lot after Sun Sheen started working in government. Euo-Seng Ryong helped Lee-Sun Sheen to be 6 level up. Also, he protected him when he was in danger.