Second move of Hueco Mundo! Hitsugaya vs Yammy

'''Second move of Hueco Mundo! Hitsugaya vs Yammy''' is the one-hundred-thirty-eighth episode of the Bleach anime.

Statistics

 * Original Airdate: August 29, 2007
 * English Airdate: August 1, 2009
 * Opening Song: Alones
 * Ending Song: Daidai
 * Manga Chapters: Chapter 229 (from page 7), Chapter 230, and Chapter 231 (to page 10).
 * Kanji: ウェコムンド再動!日番谷vsヤミー
 * Romaji: "Weko Mundo saidō! Hitsugaya vs Yamī"
 * Arc: The Arrancar arc

Summary
In Las Noches, Ulquiorra Cifer and Yammy Riyalgo arrive in a room as Sōsuke Aizen about to complete an Arrancar using the 50% awakened Hōgyoku. Despite its state, Aizen knows that he can temporarily fully awaken the Hōgyoku by fusing it with someone who has twice as much spiritual pressure as a captain - someone such as himself. Through this method he finishes creating a young-looking Arrancar who identifies himself as Wonderweiss Margera. Aizen then sends Ulquiorra to execute the instructions he gave a month ago, and although he lets Ulquiorra choose who he wants to take with him, Aizen personally asks Grimmjow Jaegerjaquez to go.

In the Vizard's training area, after one month of training, Ichigo is only able to maintain his Hollow form for about 10 seconds. With two months left until the expected outbreak of war, Shinji Hirako feels that time is running out. Meanwhile, in Soul Society, Shūhei Hisagi finds Jūshirō Ukitake watching Orihime Inoue and Rukia Kuchiki train. Rukia had personally asked him to open up the Thirteenth Division's training area. He says that he is glad that Rukia has made a friend, even if she is Human, though he admits Inoue is not any normal Human. Hisagi gives Ukitake a copy of the Seireitei newsletter, a duty he has taken on from his former captain. After Hisagi leaves to take care of other business, Ukitake thinks about how little time they have and hopes that this temporary peace can last a little longer.

In the Human World, Yumichika Ayasegawa and Rangiku Matsumoto are getting quite frustrated with their Zanpakutō while trying to commune with their swords. Along with Tōshirō Hitsugaya and Ikkaku Madarame, they sense the arrival of four Arrancar. The group is made up of Grimmjow, Yammy, Luppi and Wonderweiss. Grimmjow who flies off as soon as he realizes that Ichigo is not there. Yammy tries to get him to stop, but Luppi states that it does not matter since Grimmjow is not an Espada anymore. As Yammy leaps down to fight, Hitsugaya meets him halfway and the two introduce themselves. Luppi, the new No. 6, faces off against Ikkaku and Yumichika, while Rangiku tries to fight Wonderweiss, but the Arrancar is too intrigued by the nearby birds to care.

Across the city, Ichigo has also sensed the Arrancar’s arrival and wants to head out, but he is held back by Love Aikawa and Kensei Muguruma. To their surprise, Shinji lets Ichigo go, and Ichigo rushes off. News of this has also reached Soul Society, but Inoue cannot go back to the Human World until she can get safe passage through the Dangai Precipice World, since she does not have a Hell Butterfly. After saying that she will be waiting for Inoue, Rukia hurries towards the gate thinking about how it is too early for the Espada to have appeared.

Grimmjow finds Ichigo, activates his Bankai. Grimmjow is unimpressed, but Ichigo reminds him that the scar on his chest is from Ichigo's Bankai attack. When Ichigo then asks Grimmjow about his missing left arm, Grimmjow claims that he threw it away and that he does not need two arms to kill Ichigo. As Grimmjow starts to power up, Ichigo gets ready to put on his Hollow mask, knowing that he has to finish this fight in the 11 seconds he can stay in that form. Over at the Urahara Shop, Renji Abarai tries to keep Sado Yasutora from leaving to go help in the battle, but Kisuke Urahara wants both of them to rest and decides to go personally in their place.