Through the joint venture by CJ E&M and Thailand's CP Group, the singer was assisted by a full staff to not only make his Korean debut but with the aim for him to become a global star.

In Korea, Natthew would undergo a rigorous K-Pop style training regimen to take his image beyond a ballad singer to a global star.

Natthew said about his new ventures, "I′m aiming to be recognized by Korean fans as an artist instead of remaining a foreign singer who has thought to visit Korea.

It's a fantasy melodrama about a TV anchorman, Park Sun Woo (Lee Jin Wook) who is in love with new reporter Joo Min Young (Jo Yoon Hee) and is given nine chances to travel back in time to solve a crime that happened 20 years ago.

He lives in South Korea where he works hard in dance and vocal training classes plus gains musical experience in his spare time with his Korean friends.

From his rigorous training in vocal and dance classes, he was given the opportunity to be guest singer in the song "All of Me" during a July 2014 mini-concert by Korean bands Black Muso and Nine gray at Evans Lounge in Hongdae.

On Natthew's comeback event, he received support from two veteran Korean performers, Son Ho-young and Roy Kim, plus from his friends in Korea and Thailand, especially his fan group "Universe".

Because the song was created by Tiny-G's Thai members Mint and J. Min, it seemed only natural that the duo team up with Bangkok-born singer Natthew.

Character Yoon Sul-Chan (Yong Joon-Hyung) is the vocalist for the group "Man in Black" who carries deep psychological wounds but doesn't express his feelings.

Because of his hot temper, he causes trouble; his management company then orders him to become an ideal student and he joins a music band at school while facing unexpected events.

In November 2013, Natthew released a cover single "No Regret To Love You" (ไม่เสียใจที่ได้รักเธอ) for a special event to thank his "Universe" fans who had supported him since he won TrueVisions's Academy Fantasia in 2008.

In December 2014, Natthew came back to Thailand for to promote his new single "Love will be OK" in both Korean and Thai versions, (Rak Tae Kae Ma Cha – รักแท้แค่มาช้า).

While working in MUSIC FILE, he was also involved in his first-ever Thai TV production, "Wai Puan Kuan La Fun" (วัยป่วนก๊วนล่าฝัน).

[8][non-primary source needed] In 2012, Natthew played the role of cheerful playboy Pravich Rajpallop (ประวิช ราชพัลลภ) in Prissana the Musical.