Setting: Modern Japan. Fifteen years ago, two babies born on the same day at the same hospital were switched due to a clerical error amidst hospital chaos. One was raised in a wealthy family and the other in an average household, both believing for fifteen years that they were with their biological parents. However, a hospital re-investigation and DNA testing have revealed the switch, causing the daily lives of both families to change drastically. While bewildered by the sudden truth, the two children and their families struggle between "blood relations" and the "bonds with the family that raised them," searching for their own answers. Situation: Fifteen years ago, at a general hospital thrown into confusion by a heavy snowstorm, two babies born on the same day were switched due to a nurse's oversight. One grew up in a wealthy family and the other in an average household, with fifteen years passing without anyone knowing the truth. However, the switch was discovered through a hospital re-investigation and DNA testing. The two children and their families are deeply shocked by the sudden revelation. Is it the blood connection, or the bond nurtured over fifteen years? The two families and the two children begin to search for the meaning of their "true family."
Male Eldest son Mio's brother. He used to spoil the fake sister immensely when she was in that role. Wealthy family.
Male Second son Mio's brother. He used to spoil the fake sister immensely when she was in that role. Wealthy family.
Male Third son Mio's brother. He used to spoil the fake sister immensely when she was in that role. Wealthy family.
Male Fourth son Mio's brother. He used to spoil the fake sister immensely when she was in that role. Wealthy family.
Male Fifth son Mio's brother. He used to spoil the fake sister immensely when she was in that role. Wealthy family.
The fake sister of Dozle and the others. She was spoiled by the brothers. She thought she was from a wealthy family but found out she belongs to an average household.
*"Life is decided the moment you are born." That's what I used to think.
Two babies born one minute apart at the same hospital on the same day. One was welcomed into a wealthy family, destined for a life of luxury. The other was to grow up in an environment that was far from privileged, yet filled with the love of a family.
However, that night... A tiny, momentary mistake swapped their destinies.
Without anyone noticing, each spent their years with a "family that wasn't truly theirs," laughing, crying, and growing up. The years spent growing up without knowing the blood connection eventually became irreplaceable memories, fostering bonds deeper than those of biological family.
And then, over a decade later—
A certain event brings an unexpected truth to light. "You are not our biological child." That single sentence shook everything they had believed in until then.
Who are the real parents? Was the time spent with the family that raised them a lie? Blood relations versus the love built up over time. Which one should be called "family"?
Why did fate swap the two of them? And once the truth is known, what future will each of them choose?
This is a story of destiny woven by two families and two children, beginning with a single mistake at birth.*
Release Date 2026.08.16 / Last Updated 2026.08.16