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One and Only (2021) – Official Series Trailer, Cast & Seasons
One and Only at a Glance
One and Only is a 2021 drama TV series with a cast led by Ren Jialun, Bai Lu and Wang Xingyue. It premiered on August 18, 2021 on iQiyi and has 1 season and 24 episodes. The series has ended, with its last episode airing on September 8, 2021, and it holds an average TMDB user score of 8.8/10 from 15 votes.
Watch the official One and Only trailer for free in 123Movies below.
1080p HD • Free YouTube Stream
Seasons & Episode Catalog (1)
Season 1
24 Episodes • 2021
Where “One and Only” Fits in the 123Movies Catalog
Frequently Asked Questions About One and Only
When did One and Only premiere?
One and Only premiered on August 18, 2021 on iQiyi.
How many seasons does One and Only have?
One and Only has 1 season with 24 episodes in total, according to TMDB.
Has One and Only ended?
Yes. One and Only has ended. Its final episode aired on September 8, 2021.
Who is in the cast of One and Only?
One and Only stars Ren Jialun as Zhousheng Chen, Bai Lu as Cui Shiyi, Wang Xingyue as Liu Zixing and Li Yiru as Hong Xiaoyu. The cast also includes Su Mengyun, Wu Mansi, Fu Jun and Liang Aiqi.
What network is One and Only on?
One and Only aired on iQiyi.
How long are One and Only episodes?
Episodes of One and Only run about 45 minutes, according to TMDB.
What kind of show is One and Only?
One and Only is listed on TMDB as a drama series.
What is the TMDB score of One and Only?
On TMDB it has an average user score of 8.8/10 from 15 votes.
Where can I watch the One and Only trailer?
You can watch the official trailer for One and Only, "Official Trailer: Memories | 长安如故 | iQiyi", for free on this 123Movies page. It is embedded from YouTube.
What should I watch if I liked One and Only?
Series TMDB recommends alongside One and Only include Sword Snow Stride (2021), Speed and Love (2025), Who Rules The World (2022), My Journey To You (2023) and Fated Hearts (2025).
Can I watch full episodes of One and Only on 123Movies?
No. 123Movies only shows official trailers and series information. Full episodes are not hosted or linked on this site.
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