Source picture: 曹煜辰cyc (weibo)

Source 1
Source 2
Source 3
Source 4

And thank you to the persons who helped me with finding the information x

Real name: 曹煜辰
Romanization: Cao Yu Chen
First name: Yu Chen
Last name: Cao
Nickname: Cao Yu Ge;Cao Xi Ge;Tào Dục Thần;Cao Yuge
Date of Birth: March 15, 1993
Place of Birth: Lanzhou, Gansu
Country: China
Nationality: Chinese
Starsign: Pisces
Chinese Zodiac: Rooster
Height: 184cm
Profession: Actor and singer
Talent agency: New Style Media
Education: The Central Academy of Drama

Source of the text below comes from https://kprofiles.com/untamed-boys-members-profile/

• Yu Chen is in the cpop group The Untamed Boys.
• He has the most acting experience out of all members in his group.
• He’s the best at controlling his facial expressions while acting out of his members.
• YuChen regrets how early he was killed off on The Untamed.
• He’s scared of bugs, especially wiggly ones like caterpillars.