Seoho is from Busan but grew up in Daejun (Source: Sound K interview ) He was born as Lee Gunmin but legally changed his name to Seoho in 2018. 

He was the 2nd trainee to join RBWboys just a month after Hwanwoong in March 2016. In July of that year, he made an appearance on Solar's MV "In My Dreams" (you can find it here). 

Seoho did hapkido and is able to roll and stand back easily and enjoys tumbling, performing the impressive backflip seen in the 'Twilight' MV (Source: Pops In Seoul profiles) Seoho also used to be on his school soccer team (source ‘I shall debut’ series ) and is considered to be very sporty, he enjoys working out regularly with Leedo. 

He participated in Produce 101 season 2 in 2017 alongside Hwanwoong and Keonhee but was sadly eliminated early on due to lack of screen time, however, his performance in 'Boy In Luv' was highly memorable. Seoho continued to attend the performances that Keonhee and Hwanwoong performed in support even after elimination. 

He later went on to Mixnine in late 2017 alongside Ravn and placed a respectable 17th but failed to make the final line up. Seoho makes a quick appearance on ep.04 of Private Life of Prinsix when Keonhee is filming his real private life at RBW's building (Source: Private Life of Prinsix ep.04 around 41:40). 

Seoho considers his future self his role model as it will enable him to develop into a cooler version of himself (Source: Officially Kmusic). 

One of his favorite past times is asking useless questions (Source: Officially Kmusic ). And he is the one that likes to experiment with crazy things while cooking (Source: K-Poppin’ interview) and he’s stated that the first thing he does when he arrives home is shower (Source: ASC).