|This article is about a/an episode in Juken Sentai Gekiranger.|
Thirty-eighth Lesson - Biba-Biba! Another Retsu (修行その38 ビバビバ！もう一人のレツ Shugyō Sono Sanjūhachi: Biba-Biba! Mō Hitori no Retsu) is the thirty-eighth episode of Juken Sentai Gekiranger.
Retsu is affected by a Mythical Beast's ability that makes his reflection come alive and replace him in the real world.
Though Mele appraised the Phantom Jūken's power, Rio remains unconvinced of it with to undergo the blood-oath. Sanyo decides to send his other disciple, Gen Jū Minotaur-Ken user Shiyuu, to provide further proof for Long. Meanwhile at SCRTC, Retsu and Gou get into an argument over Chashu until Shiyuu begins his attack, with Retsu cracking his armor. While the Gekirangers were outmatched by Mele testing her new found powers on them, Shiyuu took advantage to get revenge on Retsu. Though hit by Shiyuu's Gengi, Retsu is not physically harmed. Gou warns his brother that an attack is always significant no matter how hard the initial blow is. This turns out true when Retsu's reflection comes to life and drags Retsu into the mirror world so he can take the original's place, with Retsu becoming the reflection. While this occurs, Shiyuu enlarged himself and the gang arrive to fight in SaiDaiOh and Geki Fire. However, Mirror Retsu reveals himself to be a clone of Shiyuu, using Geki Fire to attack SaiDaiOh. Though the others fell for Shiyuu's deception, Gou was not as easily fooled and saves Retsu, destroying Shiyuu's reflection-clones. The real Shiyuu overpowers until Geki BatTohja Wolf arrives, wounding Shiyuu to be destroyed by SaiDaiOh. While Retsu and Gou enjoy a victory meal after the fight, Rio criticizes the Gen Jūken more until Long awakens the Mythical General resting within the coffin Sanyo brought with him: the mysterious Gen Jū Chimera-Ken master Suugu.
- Jan Kandou (漢堂 ジャン Kandō Jan): Hiroki Suzuki (鈴木 裕樹 Suzuki Hiroki)
- Ran Uzaki (宇崎 ラン Uzaki Ran): Mina Fukui (福井 未菜 Fukui Mina)
- Retsu Fukami (深見 レツ Fukami Retsu): Manpei Takagi (高木 万平 Takagi Manpei)
- Gou Fukami (深見 ゴウ Fukami Gō): Riki Miura (三浦 力 Miura Riki)
- Ken Hisatsu (久津 ケン Hisatsu Ken): Sotaro (聡太郎 Sōtarō, Sotaro Yasuda)
- Master Sha-Fu (マスター・シャーフー Masutā Shā Fū, Voice): Ichirō Nagai (永井 一郎 Nagai Ichirō)
- Miki Masaki (真咲 美希 Masaki Miki): Kazue Itoh (伊藤 かずえ Itō Kazue)
- Rio (理央 Rio): Hirofumi Araki (荒木 宏文 Araki Hirofumi)
- Mele (メレ Mere): Yuka Hirata (平田 裕香 Hirata Yuka)
- Bae (バエ Voice): Akira Ishida (石田 彰 Ishida Akira)
- Long (ロン Ron): Naoki Kawano (川野 直輝 Kawano Naoki)
- Sanyo (サンヨ San'yo, Voice): Hideyuki Umezu (梅津 秀行 Umezu Hideyuki)
- Shiyuu (シユウ Shiyū, Voice): Mitsuaki Madono (真殿 光昭 Madono Mitsuaki)
- Fake Retsu Fukami: Shinpei Takagi (高木心平 Takagi Shinpei)
- As part of Super Hero Time, this episode aired alongside Kamen Rider Den-O episode 41, Candy Scandal.
- Pre-Credits: GekiBatTohjaWolf
- Retsu's reflection is portrayed by Manpei Takagi's own twin brother, Shinpei Takagi.
- Even though Shiyuu did not use Turn Reversal on Gou, Gou's clone was created in the mirror world.
Juken Sentai Gekiranger Volume 10 features episodes 37-40: Lesson 37: Gyan-Gyan! Useless Arranged Marriage Discussion, Lesson 38: Biba-Biba! Another Retsu, Lesson 39: Uro-Uro! The Children Don't Return, and Lesson 40: Head goes Bakān! The Shock of the Truth.