2017–2019: Wanna One
In 2017, he was a contestant on Mnet's survival show Produce 101 Season 2. He finished in 7th place thus making him a member of the project group Wanna One. The group debuted on August 7, 2017 with their first mini album 1X1=1 (To Be One) and concluded activities following their final concert on January 27, 2019.
2019: Wooseok X Kuanlin, legal dispute with Cube
Following Wanna One's disbandment, Kuanlin became a member of the unit duo Wooseok X Kuanlin, alongside PENTAGON's Wooseok. They debuted on March 11 with the release of their first mini album 9801.
On July 20, he requested to terminate his contract with Cube Entertainment, the reason being Cube violated the norms of the contract, and he had his management rights sold to a third-party company.
On August 7, 2019, the first questioning between Kuanlin's representatives and Cube started on the Seoul Central District Court.
On November 21, 2019, Kuanlin's request was dismissed by the court, with Cube stating there was no reason behind the termination request, despite Kuanlin's side proving otherwise.  This in turn caused an outrage on behalf of Kuanlin's fans on social media, using the hashtag #StandByKuanlin, demanding the liberation of Kuanlin from the company.
- A Little Thing Called First Love (2019)
- Produce 101 Season 2 (Mnet, 2017) - contestant
Music video appearances
- Dr Jart+ (2018)
- L'Oréal Paris China (2019)
- Xylis (2019)
- He reveals that he can speak three languages, Chinese, English, and Korean.
- To him, it's really hard to pronounce the word 족발 (Jok-bal).
- It's one of his favorite foods, but he's afraid of pronouncing it so he asks for 보쌈 (Bo-ssam) instead.
- He moved to South Korea to pursue a K-Pop career.
- He has trained in Cube Entertainment for 6 months. If including Produce 101 Season 2, it has been 10 months.
- The teachers noted that he can rap better in Korean than in English.
- He admires PENTAGON's Wooseok.
- This was further noted by the fact he mentioned him in his acceptance speech in the finale of Produce 101 Season 2.
- ↑ Soompi: Cube Entertainment Announces Debut Of New Unit Group With 1st Teaser
- ↑ Naver News: "韓 활동 포기 생각 없어" 라이관린, 큐브 상대 심문 공판 출석
- ↑ Soompi: Lai Kuanlin's Legal Reps explain termination request for contract with Cube
- ↑ Star News: 라이관린vs큐브 전속계약 분쟁 23일 첫 재판 열린다
- ↑ MengNews: Lai Kuanlin looking to leave
- ↑ Naver News: 라이관린 취소통보 "韓 행사 16시간 전 연락 받아, 당혹스럽다"
- ↑ Soompi: Courts Set Date For 1st Questioning Between Lai Kuanlin And Cube Entertainment
- ↑ Newspim: 큐브 "라이관린 전속계약 정지 가처분신청 기각…해결방안 모색할 것"
- ↑ Soompi: Court dismisses Lai Kuanlin's request to end contract with Cube Entertainment
- ↑ Twitter: #StandByKuanlin