Actor Lee Sang Yi is showing his support for longtime friend Ahn Eun Jin by making a special appearance in her KBS2 drama A Love Other Than Yours.

According to reports on October 31, Lee Sang Yi will appear in episode 13 of the weekend drama, which is approaching its finale with only two episodes remaining.

His appearance is especially meaningful because he and Ahn Eun Jin have been close friends since their university days at the Korea National University of Arts (K-ARTS). Both belong to the school's famous class of 2010, often called the "legendary class of 2010" because of its many successful actors.

The two previously appeared together in entertainment content, where they shared funny stories about their student days and showed their comfortable friendship.

To celebrate Lee Sang Yi's special appearance, the production team released behind-the-scenes photos featuring the two actors on set.

In one photo, Lee Sang Yi smiles while making a V sign toward the camera, while Ahn Eun Jin playfully gestures toward him as if introducing her friend. Their relaxed expressions highlight their close relationship off-screen.

Meanwhile, newly released drama stills show Lee Sang Yi sitting across from Ahn Eun Jin's character, Lee Mi Do, at a table. Lee Sang Yi's character appears excited during their conversation, while Lee Mi Do watches him with a calm expression.

The production team has not revealed the identity of Lee Sang Yi's character or how he will be connected to Lee Mi Do, leaving viewers curious about his role in the remaining episodes.

This is not the first time Lee Sang Yi has made a special appearance to support a university friend.

He previously appeared in the film Love in the Big City to support actress Kim Go Eun, another member of K-ARTS' well-known class of 2010.

His latest appearance for Ahn Eun Jin once again highlights the lasting friendships among the actors who studied together.

Lee Sang Yi's special appearance in A Love Other Than Yours will air on October 31 through KBS2, adding another familiar face to the drama as it approaches its conclusion.