"National Siblings Day" is a day where siblings celebrate their love for each other. On April 12, Somi shared photos of her little sister, Evelyn, on her Instagram account.

According to Koreaboo, Somi showed her love for her sister, Evelyn, on National Siblings Day as she shared pictures on her Instagram account. The photos showed Somi and Evelyn spending quality time.

One picture Somi shared was of Evelyn wearing a cute little red puffer jacket and purple scarf. Evelyn looked very cute with her round eyes looking towards the camera.

The next picture Somi shared showed Evelyn wearing a cute black and white checkered jacket while spending time at an outdoor restaurant. Evelyn looked beautiful and cute with her short hair.

The next photo showed Somi's little sister wearing an oversized military camouflaged jacket and a little blue sling bag. Evelyn showed her cute side as she tries to blow a balloon.

The last photo showed Somi and Evelyn's rosy cheeks side by side in a selfie trying to look cute (in which they do). Fans can't help but comment how cute and lovely the two siblings looked.

Somi also uploaded pictures of Chaeyoung and Dahyun to which she considered her sisters also. This made fans in the comment section go crazy and "fangirled".

In other news, Somi cried in a recent episode of "Sister's Slam Dunk Season 2". As previously reported, Somi failed to execute what she practiced the night before her singing test.

It was Somi's turn to be graded and she was made to sing a part of their debut song "Am I Right". However, Somi did not use her real voice and instead did a falsetto on the song's high notes.

Somi cried of disappointment as she practiced all night for the singing test. Her voice coach Jang Jin Young also expressed his disappointment, saying that he did not do his best to help Somi overcome her fear of using her strong voice.