**⚠️ FULL SPOILER WARNING: This article reveals the ending of Episodes 20–21 of My Love from the Star, including Do Min-joon's departure, return, and the final epilogue.**
My Love from the Star Ending Explained: How Does Do Min-joon Return?
The ending of My Love from the Star does not mean that Do Min-joon has permanently settled on Earth. He cannot avoid his scheduled departure, but he repeatedly tries to return through a wormhole; his brief, unstable appearances gradually become longer stays. The result is a happy reunion with a bittersweet condition: the possibility of another disappearance has not been erased. Rather than recapping the entire finale, this explanation follows the one chain that matters: departure deadline → disappearance → repeated wormhole attempts → longer stays.
The Ending in One Paragraph
Do Min-joon has to leave, but he finds a way back to Cheon Song-yi. Before his departure, the couple spend their remaining time together. He later appears on the red carpet, reunites with Song-yi, and disappears again. That sequence establishes that his return is real but not yet stable. He has not simply remained on his home planet: he keeps attempting to reach Earth through a wormhole, at first appearing only briefly before vanishing. By the epilogue, he can stay for longer stretches, although the drama never confirms that his disappearances have ended completely.
Missing that sequence can make the red-carpet reunion look either like a fantasy or like proof of a permanent return. The drama's answer sits between those readings. The reunion happens, but the condition that makes it possible is still unreliable.
Why Does Do Min-joon Disappear?
His disappearance is not a last-minute twist; it completes the return deadline established by the premise. Do Min-joon arrived on Earth 400 years earlier and is finally approaching his chance to go back to where he came from. The final separation pays off that long countdown.
The important distinction is that love does not cancel the rule of departure. Min-joon wants to remain with Song-yi, but wanting it is not enough to make his life on Earth stable. His emotional choice and the physical consequence therefore split: he chooses her, yet he still has to undergo the departure.
That distinction also explains the red-carpet scene. When Min-joon appears and then disappears, he has not changed his mind. He has succeeded in returning, but cannot yet sustain his presence. The finale shifts the problem from “Will he come back?” to “How long can he remain?”
How Does He Return Through the Wormhole?
The wormhole is presented as an unstable route that Min-joon uses repeatedly, not a one-time teleportation device that fixes everything. After leaving, he continues trying to reach Earth. His earliest successful appearances are so brief that he vanishes again soon after arriving. With repeated attempts, however, the length of his stays increases.
The mechanism is clearest when reduced to five steps:
- Min-joon leaves Earth at the appointed time.
- He attempts to travel back through a wormhole.
- His early returns succeed but remain brief and unstable.
- Repeated attempts allow him to stay for longer stretches.
- Even in the epilogue, permanent residence is not confirmed.
The series does not fully define the wormhole's physics. There is no need to retrofit the finale with real-world science or treat a fan theory as an official rule. For the story, the relevant rule is narrower: there is a route back, and practice makes Min-joon's time on Earth progressively longer.
Is It a Happy Ending?
The most accurate label is a hopeful but unstable happy ending. The central wish is fulfilled: Song-yi and Min-joon reunite. His return is not a single imagined encounter, and the pattern of repeated attempts and longer stays suggests that their time together can continue to grow.
The drama does not, however, promise that he will never disappear again. That is why Song-yi's reflection on cherishing his returns matters. Her happiness is not secured by a guarantee of permanence. It comes from sharing the present with someone who truly returns, even while another separation remains possible.
The finale's optimism therefore does not come from solving every rule. It comes from Min-joon continuing to choose the journey back and Song-yi refusing to treat their uncertain time as less meaningful. Two statements must remain together: the reunion is real, but permanence is still open.
Which Clues Pay Off—and What Remains Open?
The finale pays off the 400-year wait and the departure countdown, while leaving the science of the wormhole and permanent residence unresolved. Three established ideas carry the ending.
- The arrival 400 years ago: Min-joon's status as someone who does not belong to Earth gives the final separation its unavoidable cause.
- The approaching departure: The countdown becomes an actual departure in the finale. His love for Song-yi does not erase it.
- Limits on extraordinary power: Even with his abilities, Min-joon cannot command time and space without restriction. That limitation becomes the instability of his reappearances.
The open questions matter just as much. The drama does not provide a complete scientific model of the wormhole, confirm whether his stays will eventually become permanent, or establish an exact final maximum stay in the official material used here. Claims that he has become fully human or can now remain on Earth forever should therefore be treated as interpretations, not finale facts.
Which Episodes Do You Need to Understand the Finale?
Episodes 20 and 21 contain the necessary setup and payoff, with Episode 21 doing most of the explanatory work. Episode 20 gives the departure deadline and final choice their pressure. Episode 21 shows the departure, the unstable reappearances, the repeated attempts, and the longer stays. Watching only the red-carpet scene can make the reunion seem imaginary; focusing only on the epilogue can encourage an overly certain “permanent return” reading. They need to be read as consecutive parts of the same rule.
The concise answer is this: Min-joon leaves, genuinely returns, and becomes able to remain longer with each phase of his effort. The drama never declares that the process is complete. Instead of promising a flawless eternity, My Love from the Star makes the repeated decision to return its final expression of love.
Read the Spoiler-Free Guide
Sources
- SBS official My Love from the Star VOD list — verified August 8, 2026
- SBS official finale clip page — verified August 8, 2026
- SBS Entertainment News premise overview — verified August 8, 2026
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