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Star Detective Precure! S1E28 — The Mysterious Thief Decchi Agein!

6.8

Star Detective Precure!•Season 1•Episode 28

The Mysterious Thief Decchi Agein!

6.8/10 · 9 votesAug 9, 202625 min

Ranked #36 of 37 in Season 1•−1.2 vs season avg

Paul, an exchange student from London, receives a calling card from the Phantom Thieves’ Guild and runs to the CUREtto Detective Agency for help. The calling card looks very flashy, and the listed time is down to the second, making it different from previous cards.

Previous episodeE27 · I'm a Star Detective Now!Next episodeE29 · The Duo's Past

Seasons1

Season 1 Episodes38

Debut! Star Detective Precure! still

Debut! Star Detective Precure!

Introducing the Genius, Jett-Senpai! still

Introducing the Genius, Jett-Senpai!

Everyone Come to the CUREtto Detective Agency! still

Everyone Come to the CUREtto Detective Agency!

Exciting! Our First Client! still

Exciting! Our First Client!

Star Detectives In Trouble? still

Star Detectives In Trouble?

Miraculous Pre-Kit Mirror Loupe! still

Miraculous Pre-Kit Mirror Loupe!

Yikes! The School Is a Maze? still

Yikes! The School Is a Maze?

Pretty Smiles at Pretty Holic! still

Pretty Smiles at Pretty Holic!

Don't Make Assumptions! still

Don't Make Assumptions!

Solve the Mystery of the Painting! still

Solve the Mystery of the Painting!

Cure Arcana Shadow Appears! still

Cure Arcana Shadow Appears!

The Secret of Cure Arcana Shadow still

The Secret of Cure Arcana Shadow

Star Detectives VS Thieves still

Star Detectives VS Thieves

Pochitan's First Outing! still

Pochitan's First Outing!

The Secret of Luluka Moria still

The Secret of Luluka Moria

Detective Ellie's Case Book? still

Detective Ellie's Case Book?

Memories with Mom still

Memories with Mom

Star Detectives Assemble still

Star Detectives Assemble

Invitation to the Labyrinth Train?! still

Invitation to the Labyrinth Train?!

Legend from a Certain Island! still

Legend from a Certain Island!

Detective Ellie's Case Book, Part 2? still

Detective Ellie's Case Book, Part 2?

Shiruka's Resolve still

Shiruka's Resolve

Kurea, Sleuthing, and Ice Cream still

Kurea, Sleuthing, and Ice Cream

Case Closed with Rei! still

Case Closed with Rei!

Cure Eclair's Identity still

Cure Eclair's Identity

Cure Eclair Returns! still

Cure Eclair Returns!

I'm a Star Detective Now! still

I'm a Star Detective Now!

The Mysterious Thief Decchi Agein! still

E28 6.8Now viewing

The Mysterious Thief Decchi Agein!

The Duo's Past still

The Duo's Past

Eclipse Shadow still

Eclipse Shadow

Star Detective Cure Arcana still

Star Detective Cure Arcana

I'm Back, CUREtto Detective Agency still

I'm Back, CUREtto Detective Agency

The Path to Star Detective Starts with a Single Step still

The Path to Star Detective Starts with a Single Step

Luluka and the Gold-Star Full Moon still

Luluka and the Gold-Star Full Moon

Love Detectives still

Love Detectives

The Gold Medal of Trials still

The Gold Medal of Trials

Usonoir and Nijee's Tea Time still

Usonoir and Nijee's Tea Time

Kurea's Answer still

Kurea's Answer

Cast13

Hikari Senga

Hikari Senga

Anna Akechi / Cure Answer (voice)

Kaede Hondo

Kaede Hondo

Mikuru Kobayashi / Cure Mystique (voice)

Nao Toyama

Nao Toyama

Luluka Moria / Cure Arcana Shadow / Cure Arcana (voice)

Ikumi Hasegawa

Ikumi Hasegawa

Kurea Howa / Cure Eclair (voice)

Yuki Kaji

Yuki Kaji

Jett-senpai (voice)

Emiri Kato

Emiri Kato

Pochitan (voice)

Hina Youmiya

Hina Youmiya

Mashutan (voice)

Karin Isobe

Karin Isobe

Shushutan (voice)

Satoshi Hino

Satoshi Hino

Usonoir (voice)

Yoshitsugu Matsuoka

Yoshitsugu Matsuoka

Nijee (voice)

Ayaka Ohashi

Ayaka Ohashi

Ageseine (voice)

Eiichi Ishikawa

Eiichi Ishikawa

Goemon (voice)

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Episode Summary

"The Mysterious Thief Decchi Agein!" is episode 28 of Star Detective Precure! season 1. It scored 6.8/10 from 9 votes, ranking #36 of 37 episodes this season (season average 8.0). It aired on August 9, 2026.

Next: E29 · The Duo's Past Best of Season 1