Few moments in Made in Abyss capture the series’ cruel beauty as powerfully as Nanachi and Mitty’s goodbye. It is not just a sad scene. It is a moment built from love, guilt, mercy, and the unbearable weight of survival. By the time Nanachi finally lets Mitty go, the audience understands that this farewell has been delayed for a long time. It is not sudden. It is not simple. It is the end of a wound that has never been allowed to close.
Nanachi and Mitty’s bond begins in innocence. They are children drawn into the Abyss by curiosity, poverty, hope, and the promise of something better. Like many characters in Made in Abyss, they do not fully understand the cost of descending deeper. The Abyss is framed as a place of wonder, but wonder in this world is never safe. Every beautiful layer hides a new form of suffering. Nanachi and Mitty learn this in the most devastating way when they become victims of Bondrewd’s experiments.
Mitty’s transformation is one of the series’ most horrifying tragedies because it strips away the ordinary idea of death. She does not simply die. She is changed into a body that cannot properly live, cannot properly speak, and cannot properly end. Her humanity remains emotionally present, but physically unreachable. Nanachi, meanwhile, survives in a different form, carrying both the blessing of altered perception and the curse of memory. Nanachi remembers what Mitty was. Nanachi remembers what happened. Most painfully, Nanachi remembers that Mitty is still there in some way.
This is what makes their goodbye so devastating. Nanachi has not abandoned Mitty. Nanachi has stayed. They have built a hidden life around protecting her, caring for her, and trying to find a way to end her pain. It is a form of love that has become a prison for both of them. Nanachi cannot move forward because moving forward feels like betrayal. Mitty cannot be freed because her body resists destruction. Their bond becomes a quiet, endless grief.
When Reg enters the story, he becomes the impossible answer Nanachi has been waiting for. His Incinerator is one of the few forces capable of giving Mitty a true death. This turns the scene into more than a mercy killing. It becomes a question of whether love sometimes means holding on, or whether love sometimes means finally letting go. Nanachi knows what must happen, but knowing does not make it easier. In fact, the certainty makes it worse. There is no enemy to defeat in that moment. There is only pain, compassion, and the courage to stop delaying the inevitable.
Nanachi’s reaction is what gives the goodbye its emotional force. They are not cold or detached. They are not simply asking Reg to destroy a monster. Nanachi is saying goodbye to their dearest friend. They are saying goodbye to the last living piece of their old life. They are saying goodbye to the guilt that has shaped their existence. The scene hurts because Nanachi’s love is so clear. Mitty is not treated as an object, a failed experiment, or a ruined body. To Nanachi, Mitty is still Mitty.
That is one of the reasons the scene stays with viewers. Made in Abyss often presents horror through physical transformation, but the true horror is emotional. What does it mean to remain loyal when someone you love has been changed beyond recognition? What does it mean to protect someone when protection only extends their suffering? What does it mean to survive when the person beside you did not get the same chance? Nanachi’s goodbye to Mitty forces these questions without offering an easy answer.
The scene also deepens the moral complexity of the series. The Abyss does not only kill people. It distorts relationships, bodies, dreams, and memories. It turns love into endurance. It turns survival into guilt. Nanachi’s grief is not dramatic in a loud way; it is exhausted, intimate, and painfully familiar. They have been grieving Mitty while still caring for her. They have been living beside a goodbye that never arrived.
When Mitty finally disappears, the moment feels both heartbreaking and merciful. There is loss, but there is also release. Nanachi loses the companion they fought so hard to protect, but Mitty is freed from endless suffering. The sadness comes from the fact that mercy and grief happen at the same time. The right thing still hurts. The compassionate choice still breaks Nanachi’s heart.
Nanachi and Mitty’s goodbye is one of the defining emotional moments of Made in Abyss because it shows the series at its most human. Beneath the strange creatures, mysterious relics, and brutal rules of the Abyss, this is a story about love under impossible conditions. Nanachi’s final act for Mitty is not an act of giving up. It is an act of devotion. After everything the Abyss took from them, Nanachi gives Mitty the only peace left to give.
That is why the scene is so unforgettable. It is not simply about death. It is about the terrible kindness of release. It is about loving someone enough to stop holding them in pain. It is about the moment when goodbye becomes the last form of care.
