Overview
Series synopsis
WHAT? DOOR! is a South Korean reality television series that premiered on YouTube on December 19, 2023. It stars Jaehyun, Sungho, Riwoo and Taesan.
Knock, knock! Who's there? BOYNEXTDOOR! This variety show focuses on k-pop boygroup BOYNEXTDOOR and shows off the group's fun times off stage.
Premise
Knock, knock! Who's there? BOYNEXTDOOR! This variety show focuses on k-pop boygroup BOYNEXTDOOR and shows off the group's fun times off stage.
Cast and characters
Leading cast
Guest cast
- Kim Jun-ho as Self
Episodes
This series spans 2 seasons with 58 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 0 | 3 | November 25, 2025 | December 9, 2025 |
| Season 1 | 55 | December 19, 2023 | May 5, 2026 |
Season 0 preview
3 episodes total
| Episode | Title | Air date |
|---|---|---|
| 1 | WHAT?DOOR! SPIN-OFF EP.1 | November 25, 2025 |
| 2 | WHAT?DOOR! SPIN-OFF EP.2 | December 2, 2025 |
| 3 | WHAT?DOOR! SPIN-OFF EP.3 | December 9, 2025 |
Season 1 preview
55 episodes total
| Episode | Title | Air date |
|---|---|---|
| 1 |
WHAT? DOOR! EP.1 BOYNEXTDOOR are in search of their variety show name, all the while completing challenges. |
December 19, 2023 |
| 2 | WHAT? DOOR! EP.2 | December 26, 2023 |
| 3 | WHAT? DOOR! EP.3 | January 2, 2024 |
Production
Genres
Reality
Country
KR
Original language
ko
Release
| Original network/platform | YouTube |
|---|---|
| First aired | December 19, 2023 |
| Last aired | March 24, 2026 |
| Status | continue |