*This content was translated by AI.View Original

Actor Lee Seong-sin is drawing attention for his acting skills showcased in 'Checkmate.'
Lee Seong-sin portrayed Jung Eun-seong in the Resinsnack short drama 'Checkmate,' released on June 11. Since its release, the work has maintained a top ranking within the platform, and it also holds a top position in Resinsnack's global section.
Jung Eun-seong is a character who was the undisputed number one during his school days and simultaneously evoked both Lee Su-hyun's admiration and inferiority complex. Lee Seong-sin expressed both a relaxed demeanor that did not easily reveal his inner thoughts and emotions that changed depending on the relationship.
In the reunion scene, he reacted calmly, unlike Lee Su-hyun who expected to be remembered, thereby highlighting the distance between the two characters. In the latter half of the drama, he revealed concern and anxiety toward Lee Su-hyun, adding a change to his initially cold image. He received praise for convincingly conveying Jung Eun-seong's sincerity by connecting emotions that shifted between indifference and desperation while acting alongside Cheon Woo-jin.
To mark the 100th day since the release of 'Checkmate,' Lee Seong-sin visited a fan-made cheering LED screen, sharing an authentication photo and a vlog to respond to fans' support.
His agency, Jellyfish Entertainment, stated, "Lee Seong-sin has broadened his experience from emotional acting in music videos to portraying complex characters in short dramas. Please look forward to the new characters and activities he will showcase in the future."
<© STARNEWS. All rights reserved. No reproduction or redistribution allowed.>
*This content was translated by AI.View Original

![Lee Chan-won repaid 2 million won borrowed from his mother with '10 times' the amount: "I sent every single won of my first settlement payment..." [What's the Point of Leaving It Behind?]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=640,h=427,fit=cover,g=face/21/2026/10/2026101307261520954_1.jpg)

![Lee Hyori delivers a sharp remark to Miss World Korea Lee Ju-hyang, who is dubbed the "Karina lookalike": "Looks fade quickly" [Love War] [★Night TV]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=640,h=427,fit=cover,g=face/21/2026/10/2026101223470059181_1.jpg)


![Hotel Suite Room, Mysterious Incident… “Room 1301 Knows,” Han Ye-ri Cast [Official]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=300,h=208,fit=cover,g=face/21/2026/10/2026101311341969184_1.jpg)
!["This year's Busan International Film Festival: A sea of people beyond expectations, astonishing audience quality" [Interview] [BIFF Wrap-up ①]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=300,h=208,fit=cover,g=face/21/2026/10/2026101211183326136_1.jpg)




