PERIASTRON (페리아스트론)

“The point where we felt closest, was called PERIASTRON.” Song: CELESTIAL Sung by MINO

Debut date: November 25, 2025

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Summary

PERIASTRON (KOR: 페리아스트론, RR: peliaseuteulon) debuted on November 25, 2025. Formed after a few days since the variety show, LOVESTRUCK, ended. Behind the top group debuting from the variety show, BAY6. This group actually planned to be a duo only with MINO and HARPER, but they saw a contestant similar to their style and looks, so it became a trio. This group consists of 3 members, with a same, alike accessory; MINO, HARPER, and YEHO. They got their group name because of their hyper-similar hats. Their original debut name planned to be BOWSTRON, but they thought that was “not fitting.” So, they ended up with PERIASTRON. Also, they chose that name because PERIASTRON meant when a plant, or a celestial, was the closest point from the star in astronomy terms. Hence why their fandom name, STAR, means that they are at the closest point from the STAR, or the fans! So, they had 2 reasons to keep their debut name PERIASTRON. From now, they plan to bring mystery but impeccable music to the industry, and stated that “they will not disappoint.” They plan to bring stunning, and interesting concepts, working with real-life phenomenas and theories to make their concepts.

Story (Lore)

Originally, this group was only planned to be a duo, but at the last minute, they saw a member they really liked. The duo were both in Japan, learning to be a K-Pop idol duo. It was really last minute when YEHO joined. Even if YEHO was selected last, both of them treated YEHO as if he was here since day 1. The duo were neighbors, and quickly became friends. they went to the same school starting 7th grade, and stuck together till they were ready to debut. They both self-taught themselves to dance & sing. Until they applied online via the JYP Auditions website. They were shocked and so overjoyed when they found out they passed the first stage. Then, the duo were flown to South Korea for extra training. After 2-3 years, they were put into a survival show called LOVESTRUCK. During their time there, that was where they discovered YEHO. Who looked exactly like them. Both of them were amazed when they saw each other for the first time. They quickly became friends, and YEHO was invited into their duo, now a trio. Then, came the choosing. The two groups were BAY6 and PERIASTRON. YEHO was scared that he was going to be put in BAY6, separating him from what looked like to be his brothers. After, it was just him and another contestant. After a tense time, YEHO was chosen to be in PERIASTRON. YEHO couldn’t help but cry in tears of joy since he made it. He didn’t think he’d make it due to his training time and his mild low iron condition. YEHO only trained for one year. From his perspective, YEHO was an only child living in Incheon, till he was interested into becoming an idol. He learned Japanese for that matter. After, he trained with JYP for almost 5 years, till he was ready for the 3rd stage in training, the variety show, which will determine the group or position he would be in. He never expected to have someone, or better, two people, that looked almost like him. He quickly got attached with MINO and HARPER. Now, they have officially debuted, and is now working on their debut, called “ENTITY.”

PERIASTRON “ENTITY” Concept SCIENTIST