- stage name: mark (마크)
- english name: mark tuan
- chinese name: duan yi-en (段宜恩)
- nicknames: kim mark
- birthday: september 4, 1993
- positions: main rapper, lead dancer, sub-vocalist, visual
- nationality: american (of taiwanese descent)
- born: los angeles, california
- twitter / instagram
- other facts:
- fluent in english, korean, mandarin
- can also speak japanese
- became a trainee in august 2010
- in charge of martial arts tricking
- has 2 older sisters & 1 younger brother
- wrote and composed "see the light," "no jam," "let me," and "my home"
- has a tattoo on the back of his left calf
- the one who came up with the friendship necklace idea for their 7 for 7 concept
- his logo is XCIII which is 93 in roman numerals
- has created his own merch line using his '93' and 'XCIII' brand through the brand represent
aug 11 2018 ∞
mar 19 2019 +