Kuuga attempts to hit Me-Giiga-Gi from behind, but his punches have no effect. The Grongi then hits him with ink again. But before he can finish off Kuuga, vapor begins to escape from his abdomen, prompting the Grongi to escape into the water.
Shinagawa District, 1:14 a.m.
Ichijo joins the group of police outside the Grongi hideout, and congratulates Mikado the dog that found it. He then asks Sakurai what the situation is, who then informs Ichijo that they have found the missing president of the storehouse, who was probably killed by the Unidentified Lifeforms, and are waiting on the smoke bombs.
Yusuke, hearing the report over the scanner, heads towards the Grongi hideout.
Ra-Baruba-Da tells Zu-Zain-Da that his smell lured the Linto to the base, and he then argues with the other Grongi there as the police toss in the smoke bombs.
Sakurako gets a call from Minori, who asks how Yusuke has been. She says that he hasn't changed much, which reassures her.
After a moment, the police storm the warehouse. Inside, they find disturbing items, such as mutilated dolls, but the Grongi have escaped. One of them suspects that they escaped via the ceiling ducts, and at that moment the police inside receive a report that Mikado picked up on the Grongi's scent again. Mikado runs and finds Zu-Zain-Da, who kills him in a rage, leaving only a pool of blood and a collar. As Shimazaki holds the dog's bloody collar and cries out in anguish, Yusuke arrives.
Toshima District-Wakaba Nursery, 1:46 a.m.
Minori hears the children read the story of Momotaro. One of the children asks for the book back from another child, but when he refuses, the two get into a fight. Minori tells them to stop fighting, but they continue fighting until one of them attempts to hit the other with a book. At this point, Minori physically intervenes, blocks the hit, and tells them sternly to stop.
Minato District, 2:01 a.m.
Ichijo shows Yusuke photos of the warehouse hideout and the various items they discovered within. Yusuke comments that one of their items—a modified drawing board—appears to be used for counting something. When Ichijo asks about Unidentified Lifeform #21, Yusuke rubs his injured shoulder and explains how it had escaped; and notes that he couldn't fight head-on due to its ink projectiles, but attacking from behind had no effect. He then says that he may be able to fight him with Kuuga’s sword form.
Bunkyou District-Myougatani Station, 2:27 a.m.
Tamasaburo quickly ends a call to go back to watching a TV report of Number 4. He then gets another call, this time from Minori, who asks if Yusuke has returned. He replies that he got a call from Yusuke saying he had to go to the Metropolitan Police.
Metropolitan Police-Dojo, 2:52 p.m.
Yusuke and Ichijo spar using kendo equipment. While fighting, Ichijo tells Yusuke that his attacks are ineffective because he has been moving around too much. At this, Yusuke gets an idea, and tells him to continually attack him. When Ichijo hits him with his sword, Yusuke doesn't block it at all, instead advancing towards Ichijo until the man is backed into the opposite wall. Yusuke then disarms Ichijo and lands a blow on his head before falling over, exhausted. Yusuke tells Ichijo that with Kuuga's sword form, he'll battle this Grongi without dodging any attacks, which Ichijo notes will be dangerous.
Nozomi shows Minori to the dojo, and asks how she knows Ichijo. She replies that she knows him through her older brother. Minori comes across Yusuke as he finishes changing out of the kendo equipment. Once outside, she says she thought Yusuke had no choice but to become Kuuga, but she's still scared and feels like she's losing her brother as he continues to fight.
Ichijo gets a call from Enokida, who has finished analyzing the ash from the crime scene. She tells him that it is what remains of a fluid that Unidentified Lifeform #21 produces within its body, and causes an explosion when it comes in contact with other substances. But she also believes it may be a weakness: when the fluid is produced, #21's body temperature rises to 280 degrees Celsius, and if it doesn’t cool down after some time, it will succumb to its own heat, which is likely why it flees into large bodies of water. She also thinks its body should emit vapor somewhere, which is probably a weak point on its body. Ichijo confirms this from what Yusuke said about #21's escape.
Yusuke tells Minori that he's scared, too. When Minori asks him why he still fights, he instead asks her why she became a teacher—for other peoples' smiles. He says he’s playing his part in protecting that, just like she is. She smiles, and gives him a birthday present from the children she oversees—a bunch of paper good-luck charms, each one from the children at the nursery.
Yusuke then receives a report from Ichijo, telling him about Unidentified Lifeform #21's weakness. As he leaves, Minori tells him to be careful.
Koutou District-Ariake, 3:57 p.m.
Unidentified Lifeform #21 attacks the police, but Yusuke arrives as they flee. He then transforms into Titan Form Kuuga just as #21 fires an ink projectile at him—to no effect as the armored Titan Form proves invulnerable. Kuuga the grabs the removable handlebar from the TryChaser, and turns it into the Titan Sword. Unidentified Lifeform #21 shoots ink at him, but he continues walking forward without stopping or dodging. When he reaches Unidentified Lifeform #21, he runs the sword into the Grongi's abdomen, killing it.
This episode contains examples of:
- Chekhov's Gun: The TryChaser 2000's handlebar is vaguely shaped like a one-handed weapon, allowing Titan Form Kuuga to transform it into the Titan Sword.
- Hope Spot: Thanks to its training, Mikado the police dog does bring the police to the then-current Grongi hideout, but is later killed when it goes after Zu-Zain-Da.
