- Stage Name: Bitsaeon (빛새온)
- Birth Name: Kim Sang-Yeon (김상연)
- Position: Main Vocalist
- Birthday: June 4th, 1995
- Zodiac Sign: Gemini
- Height: 181 cm (5’11″)
- Weight: 60 kg (132 lbs)
- Blood Type: O
- Nationality: Korean
-He was born in Ganghwa Island, South Korea.
-Although he’s the oldest, he’s in charge of the aegyo and loves doing it.
-Bitsaeon’s name means “new and strong light”.
-If he could have a superpower he would choose teleportation so he could travel around the world.
-He can sing in various languages (English, Hebrew, and more).
-His favorite food is sushi.
-Has been working in part-time jobs for 7 years, since 3rd grade in middle school until he joined Fly Music entertainment.
-Worked for 3 years at a Japanese restaurant, because he love sushi so much.
-Mostly acts like the old and caring brother, but can be goofy too.
-He likes dogs and cats too, as the rest of M.O.N.T.
-Likes watching movies and listening to music.
-His favorite type of music is R&B and Soul.
-His favorite type of sports is badminton and e-sports.
-Bitsaeon can yodel. (“Pops in Seoul”)
-If he wasn’t an idol, he would have want to become a vocal teacher.
-Along with the rest of M.O.N.T’s members, Bitsaeon participated in survival show Mix Nine. Final rank: 104.
–Bitsaeon’s ideal type: Someone who looks cute when smiling and pretty despite whatever mood they are in.