Boy, with Caution

The story

Ki-woo, who hasn’t been able to tell his mother about his marriage problems and has been bouncing from one contract job interview to another due to past rumors at school, meets “Lee Hyun-jae”—whose face is badly bruised—at Nakwon High School. Everyone tells Ki-woo, who is the son of the school’s chairman, “Don’t worry about him.” But Ki-woo begins to find Hyun-jae intriguing. Meanwhile, Hyun-jae realizes that Ki-woo—the only one who asks about his true feelings—is giving him “special treatment.” As he deliberately tries to hurt himself to get Ki-woo’s attention, he spots the anonymous chat app “Anyone” on Ki-woo’s phone. He intentionally starts chatting with Ki-woo, and…

The seasons

Season 1 Season 1 2026 · 8 episodes Season details＋

Sept. 30, 2026

A disgraced teacher finds comfort in an anonymous chat partner, unaware the troubled student behind the messages is growing closer to him.

Cast

R Ryu Se-ilJang Ki-woo H Ha Jung-hoonLee Hyun-jae L Lee Jung-chanKim Jeong-ha J Jeong Si-wanPark Seong-won P Park Hong-joonChoi Young-moon L Lee Ha-joonLim Hyun-jong J Jung Jae-unKim Ji-tae B Bae Yeon-heeJeong-ha's Grandma Y Yun Su-jinHyun-jong's Mother L Lim Soo-hyun