Romero

Romero (ロメロ,) is the zombie pet poodle of Kotaro Tatsumi and is the mascot for Franchouchou.

Despite being also being a zombie, he does not seem to need to hide the fact that he is undead whenever he joins Kotaro and the girls in public, as he can be seen without his head during the shooting for The Drive-In Tori commercial in the fifth episode.

Regular Form
Romero is a zombie dog with stitches and bandages over its body, it has different fur in two shades of blue, as well as what appears to be a bruise in its right elbow. He has a doll-like right eye and has long blood-stained fangs sticking out of its mouth.

Monstrous Form
In his monstrous form, he grows larger and appears more detailed. His only eye is shown to stick out of the socket and the Saga-shaped scar on the right side of his body is more visible.

Personality
Due to Romero's zombie appearance, he seems to look and act aggressive, but he actually behaves like a normal dog majority of the time. As he spends more time with the Franchouchou idols, he becomes attached to them.

Like Tae, he generally tries to eat things that aren't even meant to be edible. As shown in the fifth episode, wherein he swallows a baseball whole, and again in the tenth episode wherein he ate a grasshopper that was unlucky enough to get close to him.

He is also shown to be very loyal to both Kotaro and the girls.

Kotaro Tatsumi
Kotaro is Romero’s master and the two share a healthy relationship. He tends to follow Kotaro and the girls around, Kotaro gets him to help the girls out at time, such as rounding them up for their morning assemblies, to which Kotaro rewards him with the same dried squid he feeds the girls in the first episode.

Sakura Minamoto (Zombie #1)
Sakura is shown to be afraid of him at first, after witnessing him morph into his more terrifying form as he happily accepts the dried squid Kotaro rewards him with for doing a good job on rallying the girls together, but the two’s bond have seemingly grown off-screen throughout the series as Sakura was comfortable enough to invite him over to her morning jog in the tenth episode. After she gets hit by another truck, Romero quickly tries scares the truck driver away as to cover up her identity as part of the undead, since at the time, she did not have her make-up on. As the truck driver leaves, he quickly scurries back to Sakura’s side and whimpers and barks loudly, showing his concern.

Saki Nikaido (Zombie #2)
The two have yet to interact on-screen but it appears they are on good terms as he has no problem hanging around her with the rest of the girls, as well as the fact that Saki does not seem to be fazed by him.

Ai Mizuno (Zombie #3)
During Ai’s getaway attempt in the second episode, she spots Romero sleeping by the exit of the mansion. Waking him up, Romero thinks that she is there to play and transforms into his more terrifying form, excitedly headbutting the door, scaring Ai away.

In the sixth episode, Ai comments on their group’s fan merch, designed by Kotaro, which has a chibified artwork of Romero sewn onto the towels, stating how it is “a weird design”.

Though, their relationship seems to improve throughout the series offscreen.

Junko Konno (Zombie #4)
Like Saki, the two have little to no onscreen interactions, but it is safe to say that they are both fine with each other’s presence and are in good terms.

Yugiri (Zombie #5)
Thanks to Yugiri’s overall personality, she is not fazed by him at all and can even be seen gently stroking him as he lies on her lap in the third episode. Albeit the two also having little to no interactions, they appear to be on friendly terms.

Lily Hoshikawa (Zombie #6)
They have a similar situation to Saki and Junko, but the two are shown to be in friendly terms, as he was seen resting on Lily’s head during the van ride in the ninth episode.

Tae Yamada (Zombie #0)
Tae is the group member he hangs out with the most, considering the fact that the two share similar personalities and habits. Some of their shared activities include howling at the moon at night, sleeping in the mansion’s front porch at times and growling at suspicious people.

Police Officer
Seeing as how the police officer is on the opposing side of Kotaro and the girls, he is not against the idea of doing anything to have to stop him. As he is seen being used as a projectile who is then launched by Kotaro to knock him out in the eleventh episode when the officer tries to approach a sulking Sakura with no make-up on.

Truck Driver
In order to keep Sakura’s undead identity a secret, he had to scare the old man away from trying to help her. It can be assumed that he also holds some resentment for the driver, considering how he hit her with a truck, albeit accidentally.

Trivia

 * The name Romero is likely a reference to George A. Romero, a film director that is well known for the cult classic zombie movie called Night of the Living Dead.
 * Romero died one month after his third birthday.
 * Like the girls, it is also unknown how Romero got resurrected.
 * It is also worth noting that, alongside Tae, his cause of death is also unknown.