Batarou

Batarou is the slash ship between Garou and Metal Bat from the One Punch Man fandom.

Canon
Garou and Metal Bat's first encounter was during the Monster Raid Arc. Garou (known as Hero Hunter) was interested in hunting one of the S-class heroes, Watchdog Man, until he heard the city announce a disaster level of Demon and that Metal Bat was busy fighting monsters. He decided to pay Metal Bat a visit. At the same time Metal Bat was fighting monsters known as Rafflesidon and Senior Centipede. He and the monsters seemed to fight on equal ground, but after Rafflesidon's unsuccessful attempt to completely get Metal Bat to succumb to it's gas technique which would make anyone else to enter and stay in a drunk-like stage and lose control of their movements, Metal Bat defeated both monsters with a single strike each.

As things were calming down, suddenly a dragon level monster known as Elder Centipede emerged from ground. It's massive form hard to miss and it's target being Hero Association's sponsor and the sponsor's son - who Metal Bat was assigned to protect - that forced Metal Bat to take action. Metal Bat is fighting Elder Centipede until he gets launched hundreds of meters across the city. It's also when Garou arrives on the scene when Metal Bat flies past him. Initially thinking Metal Bat was defeated, Garou decides to go after Watchdog Man then, but Metal Bat casually just walks past him and is going back to fight Elder Centipede. Garou stops Metal Bat by being absolutely delighted to know that Metal Bat is fine that he tells him he is now "hunting him".

As Metal Bat and Garou are fighting, Garou keeps dodging Metal Bat's attacks and manages to hurt him a lot. Despite this Metal Bat keeps on going. Garou is surprised by Metal Bat's persistence despite his numerous injuries. He still thinks Metal Bat is at his limit, but Metal Bat keeps drastically rising his power and speed until Garou's attacks aren't even fazing him. Garou asks Metal Bat how he's able to remain conscious after such horrific injuries, to which Metal Bat gives the simple response that his fighting spirit was keeping him going. The concept makes Garou curious. Garou then throws a manhole cover at Metal Bat and while Metal Bat deflects it with his bat, it gives Garou enough distraction to reach and attack him again. Metal Bat tries to hit back, but none of his attacks hit. Garou keeps mocking Metal Bat and asks him if he's going to persist until he dies. Metal Bat retorts by saying he'll fight until he wins and proceeds to initiate a killing move. Garou still manages to repel his killing move and hits a blow at Metal Bat's chest that leaves him laying on the ground.

While Garou falsely thought Metal Bat was just another brute that bragged about his power, he suddenly notices how his own hands are shaking and realizing that Metal Bat may have been far more powerful than he initially thought. He thinks Metal Bat may have had a chance in defeating him. He decides to go hunt for Watchdog Man finally, but suddenly a girl is heard yelling "Big Brother!" and Garou looks over his shoulder to see Metal Bat looming demonically over him with his bat almost hitting Garou's head. Garou is absolutely shocked by this surprise attack and Metal Bat's power. Metal Bat doesn't hit him as Zenko, Metal Bat's little sister, is right there. Garou hits Metal Bat hard so that there is distance between them and then he is walking towards him and bragging by ending this. He attacks, but Zenko is suddenly there and stops Garou and Metal Bat's fight. She tells Garou that the fight is over because Metal Bat promised to not fight in front of her. First Garou wonders why he should respect her family promise, but Zenko then glares at him and Metal Bat is watching right behind her. Garou then scratches his head and remembers he really needed to be elsewhere and respects their promise. Metal Bat gets back up and reminds Garou he was the one who wanted trouble first, and Garou nonchalantly waves his hand in the air, walking away and telling Metal Bat he got lucky. As Garou leaves, a conversation with Zenko makes Metal Bat realize he needs to get back to fight Elder Centipede, but Zenko is not having any of it. While she tries to stop him and hits him in the head, exhausted Metal Bat falls unconscious on the ground. Zenko tries to wake her brother up.

While Metal Bat is unconscious, couple monsters notice this. Phoenix Man, a member of the Monster Association, sees this as a perfect opportunity to attack him. Another monster, Sludge Jellyfish is already emerging from the nearby sewer and thinking aloud that he will kidnap Metal Bat's sister. Unfortunately for him Garou unleashes a sudden deadly attack on him from behind. As the monsters were earlier watching him, Garou tells the monster that he hates being observed. Phoenix Man joins the conversation and tries to invite Garou to join the Monster Association, unsuccessfully. Sludge Jellyfish remarks he will not forget what Garou did to him. The monsters leave.

As unconscious Metal Bat and Zenko are in the background, Garou is hidden behind a nearby building, his face is hidden in the dark while he says "Disgusting."

In later chapters it's shown that Metal Bat is going after Garou "the Hero Hunter" and constantly looking for him.

Garou is also shown using his "fighting spirit" twice as he is "pumped up" when fighting really powerful enemies in which when first time he is using it it's shown he learned it from Metal Bat.

Fanon
Batarou is not the most popular ship in One-Punch Man fandom as the characters first interacted only in one scene where they were mostly fighting against each other. A hero versus hero hunter/monster-to-be. Despite this fans of the ship noticed a spark between these two characters.

The ship was introduced to public in year 2015 when the manga chapter with Garou and Metal Bat's fight was first released. After that its popularity started to rise and many fans created a bunch of fanart of them. Few fanfics were also created and especially even today in AO3 diligent writers like to post fanfiction of them. But due to the manga's slow update schedule and the story still ongoing with many different elements happening same time, and because Garou and Metal Bat has yet to meet again, the ships popularity has quietly declined over the years. Though even today there are few that still keep posting and following Batarou content and new people still join to quietly enjoy the ship's dynamic.

As later manga chapters have given a little more crumbs for this ship, fans are anticipating where the manga is going with it.

Shitty Teen Squad
The One Punch Man fandom has also created a "Shitty Teen Squad" which basically includes Garou, Metal Bat and Genos doing silly things together as friends. Usually Metal Bat and Garou has been introduced as this chaotic duo that Genos tries to keep up with (or he is just done with them), but there are times when Metal Bat and Genos are the more mature ones and Garou tries to (or manages to) cause chaos. Other variations can also exist.

There are also versions of this where Garou and Metal Bat are pining for each other in romantic sense and Genos has to deal with them.

Fandom
FAN FICTION
 * Garou/Metal Bat tag on FanFiction.net
 * Garou/Metal Bat tag on FanFiction.net

ART
 * ガロ金 tag on Pixiv.net
 * ガロ金 tag on Pixiv.net

TUMBLR

TWITTER

Trivia

 * The manga has already shown Garou use his "fighting spirit" at least twice in hard situations, once against Gyoro Gyoro and later against Superalloy Darkshine paralleling Metal Bat's fighting spirit or the time when Garou fought him and was surprised by Metal Bat's increased power and speed. It's most likely also been a very helpful key to unlock Garou's monster form.
 * Before Garou met Metal Bat, he mostly learned physical techniques by stealing other heroes fighting styles, so when he met with Metal Bat and fought against him, he was fairly confused by Metal Bat's so called "fighting spirit". Garou didn't learn how to use such a power until much later.
 * Both Garou and Metal Bat has been shown showing a more softer side of themselves towards children.
 * They also seem to be soft towards animals (especially cats): There is an extra comic strip in volume 17 where Metal Bat and his sister Zenko are shown walking until Zenko notices a box floating in a river where two cats are meowing. Metal Bat runs and jumps in the water to save the cats, but as he reaches the box he notices that Garou has also reached the same box. They start fighting in the water while one of the cats flies to Zenko and the other flies to Tareo, Garou's child friend. Then both Metal Bat and Garou return to their respective children while drying themselves. Metal Bat and Zenko officially also have a pet cat named Tama, which they love a lot.
 * It could be said that while Metal Bat is Zenko's actual big brother, Garou could be thought as Tareo's big brother figure.
 * Garou and Metal Bat have few other similarities between them that lets fans believe they could be compatible as partners.
 * Example: They both don't want to give up on anything and nobody. They both are also stubborn and proud in their own way. They also seem to not want to hurt innocent civilians.
 * Their personalities in general seems to fit very well together as they hold similar principles, yet differ in some - which only makes the characters feel like they are from the same coin, but different sides (like soulmates).
 * Their color palette has suspiciously been similar also (red, black, white). In manga it clearly is seen as Metal Bat has black hair, white shoes. While Garou's hair was white during their fight and the shoes were drawn black. Metal Bat and Garou's colors in clothes also were mostly opposites.
 * In webcomic version Metal Bat wasn't involved with the Monster Association situation. In manga version he is added to shown to be looking for Garou. ONE once said in Niconico interview that if Metal Bat was around during the situation against the Monster Association (in webcomic version), it could have been fairly different so we will see how different it will be in manga now.
 * There is also interesting parallel between Garou in manga and Metal Bat in webcomic: As Garou fought and lost to "Monster King" Orochi, his unconsious body was then chained and he was then tortured by the Monster Association's "Monster Princess" Do-S. In webcomic in different story arc (that has yet to be adapted to the manga - spoiler warning!) Metal Bat was investigating Neo Heroes' two security guards weird behaviour and when he got too close to comfort for the answers, suddenly two brainwashed heroes attacked Metal Bat who the security guards didn't stop when Metal Bat asked them to. Realizing that they will try to catch him and perform unethical cyborgification to him, he then fights back. He is moment later put to sleep with tranquilizer darts and his unconsious body is chained up to a solitary room. Unlike with Garou, Metal Bat's unconsious body is left alone to heal so he would be in perfect shape for surgery. Both Garou and Metal Bat also break free from their chains in their respective stories.
 * In webcomic in the same story arc Neo Heroes are after Garou and when they found him, they try to use the same tranquilizer darts at him too, unsuccessfully.