
Tsukimi, a timid illustrator with a passion for jellyfish, feels far from her princess dreams. She shares a quiet life with quirky roommates who fiercely protect their close-knit, women-only household. Their secluded world is disrupted when Tsukimi rescues a jellyfish and unknowingly brings home a beauty queen—who happens to be a man. Facing the potential loss of their unique home, this charismatic newcomer attempts to transform the group into a portrait of success, challenging Tsukimi to embrace change and potentially find her own happiness.
Does Princess Jellyfish have end credit scenes?
No!
Princess Jellyfish does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of Princess Jellyfish, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Chizuru Ikewaki
Banba

Masaki Suda
Kuranosuke Koibuchi

Sei Hiraizumi
Keiichiro Koibuchi

Non
Tsukimi Kurashita

Hiroki Hasegawa
Shu Koibuchi

Tomoya Nakamura
Tropical Fish Store Clerk

Nana Katase
Shoko Inari

Kenta Uchino
Kashiwagi

Tomoe Shinohara
Jiji

Mokomichi Hayami
Yoshio Hanamori

Rina Ohta
Mayaya

Akiko Higashimura
Woman at Fashion Show
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Read the complete plot summary of Princess Jellyfish, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
Tsukimi Kurashita is the quiet center of a quirky Tokyo universe built around Amamizukan, an apartment where the doors are open to otaku women and, strictly, men are not welcome. The building hums with the distinct passions of its residents, but Tsukimi’s fixation stands out even among them: jellyfish. Her love for these sea creatures goes beyond science or fashion—it’s tied to memories of her mother, who took her to the aquarium and showed how the jellyfish’s lace-like tendrils seemed to weave themselves into the world of princess gowns. Tsukimi dreams of becoming an illustrator, and in her art, she longs for recognition and a chance to step into the bigger world outside Amamizukan. Yet she remains an awkward, hesitant soul, wary of social interaction, of glamorous people who seem to move with ease, and of the prospect of formal work that could shove her out of the only home she has ever known.
Within Amamizukan, the tenants form a tight-knit circle they affectionately call the Sisterhood, a group of NEETs who live by their own rules and support one another through quiet, stubborn loyalty. Their lives are intimate and spoken softly, even as they guard their independence from the wider world outside their walls. It’s into this enclave that a striking figure arrives—Kuranosuke Koibuchi—a stylish, outwardly confident person who defies easy labels. He is the illegitimate son of a politician, and he chooses to cross-dress as a way to dodge political obligations while also seeking a deeper, more personal connection with his mother. His arrival rattles the delicate balance of Amamizukan and sends Tsukimi on a new path she never anticipated.
Tsukimi keeps the truth of Kuranosuke’s masculinity hidden from her housemates for as long as she can, even as the dynamic shift between them becomes unavoidable. The closeness that grows—sometimes gentle, sometimes charged with tension—tests her comfort zone, forcing her to confront not just the presence of a man in her room, but the vulnerability that comes with letting someone into her carefully ordered world. The tension isn’t merely about romance or propriety; it’s about how two very different people can challenge each other’s boundaries and open up new possibilities for who they might become.
Outside the doors of Amamizukan, the neighborhood itself faces a looming threat: redevelopment. Opportunists eye a cosmopolitan upgrade that would raze the quaint, character-filled streets to erect gleaming hotels and sprawling shopping centers. The tenants fear the loss of their haven, the familiar rhythms of their lives, and the sense of identity they’ve built around their unusual home. The threat of displacement adds a layer of urgency to the already delicate personal dynamics inside the building.
Yet in the face of change, Kuranosuke’s influence becomes a catalyst for courage. He does not want to see Amamizukan erased, and his efforts to defend the place they all share become a surprising act of solidarity for Tsukimi and the rest of the Sisterhood. Amid the threat of demolition and the complexities of living with someone who challenges every rule they’ve set for themselves, the tenants must decide what they’re willing to fight for and how they’ll redefine community on their own terms. The story threads together themes of identity, belonging, and the quiet resilience required to keep a beloved corner of the city intact when the world around it grows louder, faster, and more demanding.

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