SkunkyArt | OneMoreFinal1997

Both were born as regular humans under different names (Dio Brando/Sayo Yasuda (Although, Her birth name is Lion Ushiromiya)) that were born under broken couples (Dio was born out of an Poor Abusive Couple/Beatrice was conceived through Rape & Incest), dealing under a terrible father (Dario Brando/Kinzo Ushiromiya)

& Had their mothers die when they were young, partly done to their father’s actions against them (Dario want for alcohol eventually worked his Wife to death/Kinzo hid Beatrice Ushiromiya away from the world for all her life, till Rosa Ushiromiya found & showed her around the island of Rokkenjima which ended up with her falling off a cliff to her death)

This wasn't helped due to their living conditions (Dio being born into the Slums of London/Sayo being a servant on Rokkenjima) & the other people around them acting terribly towards them (Dio being frequently abused by his Father and was looked down upon by most of the people around him/Sayo was the lap dog of the servants of Rokkenjima) but both aspired for greater things in life, relating to the afterlife in some way (Dio wanting to go to Heaven due to his Mother implanting the idea in his head/Sayo wanting to grow into a wonderful person, seeing her struggles as a Test from God)

Eventually however, this changed when they were actually given a full on chance in life as their abusers' time seem to pass (Dio killing Dario due to him selling one of his mother’s dresses, causing him to be adopted by the Joestars/The other servants of Rokkenjima leaving, making Sayo one of the most educated servants)

However, even still they were looked down upon (Dio felt like the Joestars adopting him was only out of pity, even if Jonathan was open to him/Sayo was still being disrespected by the new servants because they were told not to listen to her by the former servants) {Contrasting with Dio just believing things to be this way, possibly due to his upbringing while Sayo was actually being disrespected} but then decided to take a further action to get some respect on their name, albeit one took it much further than the other (Dio deciding to enact a plan to wear down Jonathan's spirit through psychological torment, to take the Joestar Future for himself/Sayo played pranks on the new servants, claiming that the behaviour was the result of being possessed by The Golden Witch from Legend, in hopes that they would begin to take her seriously)

But again in contrast, Dio’s plan didn’t really work due to Jonathan's Mental Fortitude with him then deciding to become “friends” with Jonathan while The Servants eventually started to question if The Golden Witch was real and took Sayo seriously from that point onward

Speaking of, during this time, they had met one person who would later become their full on obsession later on in life (Jonathan Joestar/Battler Ushiromiya), with them being good friends for many years {Albeit, Dio & Jonathan didn't really trust each other deep down}

Jonathan & Battler are both Protagonists that were born into extremely rich families that despite their upbringing, are extremely compassionate emotional (albeit Battler is a lot more so in this case) & unstoppable resolves with them being a bit of their depth at the beginning of the story before growing in mature & serious heroes who fight against supernatural forces (Vampires/Witches) in order to get a happy ending & to take down Dio/Beatrice. Both were also based off other Japanese pop culture characters (Kenshiro/Phoenix Wright)

You could also compare Battler to Jotaro, with how their families & lives had been ravaged by Beatrice/DIO and how they were the ones to finally “end” them. Also contrasting with how Battler was very emotional but became more serious over the story while Jotaro was extremely closed off but learned to become more open through the events of Stardust Crusaders, Diamond is Unbreakable & Stone Ocean. Also, both were voiced by Daisuke Ono

However, this friendship fell apart years later due to the complete opposite reasons {Jonathan found out something he shouldn’t (on Dio’s End) about how Dio was poisoning his father, George Joestar/Battler forgetting something he should’ve remembered, his promise to marry Sayo} which would fully set the stage for most of the other actions within the series

While both tried to keep their cool, both are heavily rattled by this event (Dio being extremely anxious if his plan would work at all/Sayo being completely devastated by Battler forgetting his promise) which then later led them to discover secrets that were tied to not only them, but the whole family (Dio planning to Kill Jonathan with the Stone Mask, which Dario found while looting George’s body but then finding out that it could create vampires/Sayo figuring out the Witch's epitaph, which later on was used as a detailed account of how to perform the ritual to revive Beatrice, and found the location of Kinzo's gold, which was originally thought to be given to him by Beatrice for exchange for his soul)

However, this is when about this time where both were transformed into supernatural creatures (Vampire/Witch) because of the action of another series villain who happened to be MUCH more powerful (Kars, who was the true creator of the Stone Mask/Lambdadelta, who found the design of Beatrice's Game Board amusing) {With Kars not even knowing of Dio’s Existence, while Lambdadelta used Beatrice just to trap Bernkastel in her game)

Kars & Lambdadelta are both incredibly ruthless. sadistic and cruel antagonists (even more so than Dio or Beactrice) who take great joy out of the suffering of others and get bored very quickly. While also having a very one track mind, mainly focusing on acquiring one thing (The Red Stone of Aja/Bernkastel) and took over as main antag when Dio & Beatrice "died" the first time. You could also compare Lambdadelta’s later actions to Kars from Jorge Joestar, with them actually being a lot more level headed and willing to fight on the side of good against plot manipulating threats (Jorge Joestar Dio Brando/Featherine Augustus Aurora). Also both are related to the authors previous works (Kris's Arm Blades being based one of the abilities of Boah from Baoh the Visitor/Lambdadelta being heavily tied to Satoko Houjou from Higurashi no Naku Koro ni)

This then caused them to commit an absolute slaughter (The Burning Down of the Joestar Mansion/The Rokkenjima Massacre) where then the whole series pretty much kicks off and the fate of an entire Bloodline

Throughout the First Part of the story, Jonathan & Battler are always lagging behind Dio & Beatrice, with them being extremely tauntful all the way. They both begin to use proxies to carry out murders just to help themselves (Dio's Zombies/The Goat Butlers & the Seven Stakes of Purgatory) with them gaining and showing off new powers across the story (Such as Dio’s Flash Freezing & The Red Truth), however they still keep pushing onwards

But then, eventually at the end of the first act of the story, Jonathan & Battler manage to get the upper hand on them and seemingly kill them (With Dio this happens twice, firstly on Windknight’s Lot with Jonathan’s Fire Punch destroying his Body & secondly on the Boat, where both Him & Jonathan seemingly die in a Ship Explosion/In their final debate, Beatrice becomes impaled on a massive stake, unable to destroy Battler's blue truths)

However, they show a good bit of character development and further deepen their relationship with the main character that gets expanded on later in the story (Dio talking about how he respects Jonathan as a Person & their fates are deeply intertwined/Beatrice keeps alluding to Battler’s Sin that caused the The Rokkenjima Massacre and tells Battler before she dies to answer her riddle: "who am I?")

Then they stay hidden for good bit of the story, as they aren’t really fully alive (DIO being at the bottom of the ocean for a Hundred Years after the ship explosion/Beatrice being rendered comatose, having used up all of her spirit in fighting Battler) but with them massively still affecting the bloodlines after their deaths (Joseph not having a Father Figure, Erina not having a husband, George Joestar the Second being killed by a Vampire, Lisa Lisa losing her husband/Battler spending the entirety of End of the Golden Witch & Most of Dawn of the Golden Witch trying to find a way to peacefully kill Beatrice)

Eventually, after a good but of them not being there, they are brought back to life (DIO being found at the bottom of the Ocean by Sailors and brought back onto land/Chick Beatrice & Beatrice The Elder fusing together to become Beatrice once again) where they become alot more reflective and calm.

They also help out someone who become their closest ally with their troubles (DIO healing Enrico Pucci, who was struggling to cope after he had his sister killed & brother/Beatrice teaming up with Battler to defeat Erika, where he was stuck in a Logic Error before she showed up) with them becoming alot closer afterwards (Pucci becoming DIO’s only true friend/Beatrice & Battler getting married)

Both then one last final action against the whole bloodline they were fighting against throughout the story (DIO’s Final Battle with The Stardust Crusaders in Egypt/Beatrice attempting to bring about the Rokkenjima massacre in the Tea Party) where they are finally put down (Jotaro shattering The World, which in turn Shatters DIO/Beatrice, after surrendering, being shot by Kyrie) {Contrasting with The Crusaders working together to end DIO’s Reign while the Parents at Rokkenjima killed each other due to their own inability to work with one another)

Both were still alive (Well, DIO wasn't alive, they just wanted to be sure) but finally died for real this time with the main characters standing around them & dying along side the person who they obsessed over so much (DIO’s body (along with Jonathan’s) being burned by the Sunlight/Beatrice drowning herself at the bottom of the Ocean after realizing she wouldn’t be accepted by society any longer, with Battler jumping in and going down with her)...but still kinda live on in Afterlives (There’s an Afterlife in Jojo, meaning that DIO went there at some point/Beatrice & Battler being transported to the Meta World, where Beatrice tried to make Battler remember who he was after he forgot everything), bringing their stories, to an end.