IVE has successfully concluded their detective game by solving a locked room mystery. 

Starship Entertainment, the group's agency, unveiled the ninth episode of their self-produced content series "1,2,3 IVE Season 4" on their official YouTube channel on February 26th. In the previous episode, IVE embarked on a quest to solve the mystery of a locked room case.

The scene was thrown into chaos as Jang Wonyoung, Rei, and Leeseo each claimed to have discovered the victim first. Wonyoung tried to extricate herself from the list of suspects by falsely claiming she could produce a non-existent convenience store receipt. Leeseo, despite her alibi, harbored ill feelings toward the victim. Gaeul, too, claimed to have been close to the victim, but had reasons to bear a grudge. An Yujin had fought with the victim over her sister Leeseo and was harboring negative feelings following a threat to expose her past.

Following the search for clues, Gaeul, Leeseo, and An Yujin were identified as prime suspects. The revelation of various clues, such as injuries on Gaeul and An Yujin's hands, a scratch on Jang Wonyoung's face, and ink on Leeseo's finger, further intensified the mystery.

Based on these clues, the members narrowed down the list of suspects, engaging in a light-hearted deduction process that amused viewers. The tension peaked during the "Night of the True Culprit," when the real perpetrator managed to outsmart Liz. The final vote pointed to Gaeul as the culprit, receiving five votes. The victim, regaining consciousness, confirmed Gaeul as the true perpetrator.

In other news, IVE is set to hold their second official fan club meeting, "MAGAZINE IVE," on March 9th and 10th, promising more exciting interactions with their fans, known as DIVE.