Yeesa Cheung, born on a leap day, believes her birthday is squeezed between 28 February and 1 March in common years. When she celebrates her birthday in 2017, she unexpectedly travels to 29 February 2020 in Sapporo. There she is greeted by two strangers, Ryan Ma and Yu Ka-chung, and finds her future self killed in a traffic accident. After she returns to 2017, only one second has passed, but the three have now to work together to circumvent their common destiny.
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In 2017, Yeesa Cheung discovers an omamori from her late mother's memento which appears to bring luck to her unfortunate life. As she was born on 29 February 1992, Yeesa makes a birthday wish in her bedroom at the exact second that 28 February ends, as she does every year. When she reopens her eyes, she is shocked at finding herself approached by a tram on a snowy tramway in 2020 Hokkaido.
Time and Space
Yeesa is shocked at seeing breaking news of a fatal accident with a footage of her injury. At 23:59, she finds her another future self, scattering some ashes on a footbridge; before she can comprehend the situation, she is brought back to her bedroom. Back in 2017, Kaka and Fiona arrive to give her a birthday surprise, only to find a hypothermic Yeesa. Yeesa is rushed to the hospital.
Sacred Geometry
Yeesa meets Ryan again, they introduce each other and Yeesa tells him about their future encounter. As a far-fetched future entertainment news that Yeesa told suddenly proves true, members of Sacred Geometry begin to take her seriously; her second online sharing becomes the most-viewed episode.
Gambler Principle
The chairman of Sacred Geometry, Yu Ka-chung, returns from abroad and is skeptical about Yeesa's story but switches his mind when she tells him their secret code. Yeesa feels Ka-chung is cold towards her. Deducing that her time-leap is a recurring incident, Ka-chung theories that it will happen again under the same condition, and suggests she receive a series of intensive training.
Bad News
Yeesa asks Ryan to participate in Jonathan's proposal surprise for Fiona, Ryan feels inferior to Kaka's and Fiona's boyfriends and eventually joins a Japanese restaurant. On 28 February 2018, a well-prepared Yeesa leaps to a male Japanese bathhouse. While escaping, she hides in a lorry. At Ka-chung's instructions, she observes her 2017 self and confirms having leapt to the same place and time.
Branch
Ka-chung believes the omamori is crucial to the time-leap, but Yeesa refuses to investigate further as she feels insecure with diverting the future. Uneasy at seeing her closer relationship with Sacred Geometry, Ryan confesses his love to Yeesa, but she is hesitant to accept; nevertheless Ryan remains determined to love her.
Amulet
In 2019, Yeesa explains to Ryan that she always feels insecure to make a decision alone so she wants them to prepare for the future together, but will delay confirming their relationship until 29 February 2020. On 28 February, Yeesa leaps to 2020 and following Ka-chung's notes, she then visits a shrine dedicated to time, where she learns from a priestess about her birth.
Loopback
Ryan decides to join the overseas training but promises Yessa to return to celebrate her birthday. When 2020 arrives, Ka-chung sees the fate as increasingly clear and summons Sacred Geometry to ensure Yeesa will stay in Hong Kong.
February 29
On the night of 28 February, Ka-chung visits Ryan at his restaurant; Ryan is convinced the future has changed but Ka-chung is wary. 2020-Yeesa arrives in Sapporo but realises that Ryan has a same hand-band as hers. Worried about Ryan, she decides to take responsibility and attempts to intervene.
Destiny
Ryan dies from the accident, recalling the memories that he has never accepted Ka-chung being referred to as Yeesa's future boyfriend. Remembering the priestess's teaching on sacrifices in all relationships, Yeesa unwittingly invokes the mystical power of her omamori and leaps back to half an hour before the accident. Understanding a death is inevitable, Yeesa attempts to die in Ryan's place.
Razak Khan
Udhaya
Kalpika Ganesh
I. M. Vijayan
Mark Moses
Indhuja Ravichandran
Amritha Aiyer
Sean Cronin
Gayathri Reddy
Indraja Shankar
Vijay Vishwa
Prajuna Sarah
Atlee
A.R. Rahman
Arun Alexander
Kalyan Kumar
Guhan Prakash
Navneet Kaur Dhillon
Saanvi Dhiman
Sofiee Ng Hoi-Yan
Chui Tien-You
Terrance Lau Chun-Him
Deon Cheung Chung-Chi
Sham Ka-Ki
Krince Mak
Ranya Lee
Will Or
Anna Ng
