History Main / RomanticFusion

* ''VideoGame/FinalFantasyXIV'': Long ago, an Elezan woman known as Shiva and the dragon Hraesvelgr fell in love. Faced with the societal barriers between humans and dragons, and the fact that Hraesvelgr would [[MayflyDecemberRomance outlive Shiva]] many times over, Shiva made Hraesvelgr to eat her, causing her soul to be joined to his. Centuries later, they remain connected, and Shiva's influence has kept Hraesvelgr from joining Nidhogg's war of revenge against humankind. [[spoiler:In ''Shadowbringers'', Rhyne becomes the First Shard's version of the primal Shiva. In the Savage version of her battle, she summons a copy of Shiva's love Hraesvelgr to her side. Hraesvelgr physically bonds with Shiva, granting her draconic power.]]

* ''VideoGame/FinalFantasyXIV'': Long ago, an Elezan woman known as Shiva and the dragon Hraesvelgr fell in love. Faced with the societal barriers between humans and dragons, and the fact that Hraesvelgr would [[MayflyDecemberRomance outlive Shiva]] many times over, Shiva bade Hraesvelgr to eat her, causing her soul to be joined to his. Centuries later, they remain connected, and Shiva's influence has kept Hraesvelgr from joining Nidhogg's war of revenge against humankind. [[spoiler:In ''Shadowbringers'', Rhyne becomes the First Shard's version of the primal Shiva. In the Savage version of her battle, she summons a copy of Shiva's love Hraesvelgr to her side. Hraesvelgr physically bonds with Shiva, granting her draconic power.]]

->'''Sothis:''' It's only right, for you and I are joined within our souls. And that is much the same as marriage, don't you think? The stone within your chest is little more than decoration now.[[labelnote:*]]on the Crimson Flower route, she instead says "The stone within your chest... It is no more."[[/labelnote]] That means...it is within your very soul that I exist. [...] And so? Whatever are you waiting for?\\

-->-- ''VideoGame/FireEmblemThreeHouses''

* A few ''Anime/NeonGenesisEvangelion'' [[https://www.fanfiction.net/s/960637/1/Only-In-Your-Eyes-Am-I-Worthy fan]] [[https://www.fanfiction.net/s/4510497/1/Neon-Genesis-Evangelion-Redux fictions]] depicting a romance between Shinji and Rei would often feature a scene where the two merge into one being, likely inspired by the scenes in ''The End Of Evangelion'' such as [[spoiler:Rei merging with Lilith and Shinji being fused with Rei in a sexual position during the Instrumentality]]. Due to Rei's nature [[spoiler:as part-Angel via Lilith]], the merging of the two often creates a god-like being powerful enough to start [[TheEndOfTheWorldAsWeKnowIt the Third Impact]] under their terms.

* A few ''Anime/NeonGenesisEvangelion'' [[https://www.fanfiction.net/s/960637/1/Only-In-Your-Eyes-Am-I-Worthy fan]] [[https://www.fanfiction.net/s/4510497/1/Neon-Genesis-Evangelion-Redux fictions]] depicting a romance between Shinji and Rei would often feature a scene where the two merge into one being, likely inspired by the scenes in ''Anime/TheEndOfEvangelion'' such as [[spoiler:Rei merging with Lilith and Shinji being fused with Rei in a sexual position during the Instrumentality]]. Due to Rei's nature [[spoiler:as part-Angel via Lilith]], the merging of the two often creates a god-like being powerful enough to start [[TheEndOfTheWorldAsWeKnowIt the Third Impact]] under their terms.

* A few ''Anime/NeonGenesisEvangelion'' [[https://www.fanfiction.net/s/960637/1/Only-In-Your-Eyes-Am-I-Worthy fan]] [[https://www.fanfiction.net/s/4510497/1/Neon-Genesis-Evangelion-Redux fictions]] depicting a romance between Shinji and Rei would often feature a scene where the two merge into one being, likely inspired by the scenes in ''Anime/EndOfEvangelion'' such as [[spoiler:Rei merging with Lilith and Shinji being fused with Rei in a sexual position during the Instrumentality]]. Due to Rei's nature [[spoiler:as part-Angel via Lilith]], the merging of the two often creates a god-like being powerful enough to start [[TheEndOfTheWorldAsWeKnowIt the Third Impact]] under their terms.

->'''Sothis:''' "It's only right, for you and I are joined within our souls. And that is much the same as marriage, don't you think? The stone within your chest is little more than decoration now.[[labelnote:*]]on the Crimson Flower route, she instead says "The stone within your chest... It is no more."[[/labelnote]] That means...it is within your very soul that I exist. [...] And so? Whatever are you waiting for?"\\
'''Byleth:''' " How do I..."\\
'''Sothis:''' "Hm? Ah. Well, just wear it on your own finger! Our love is all that matters, not a ring. The two of us are one, for now and ever."
-->-- ''Videogame/FireEmblemThreeHouses''

* In ''WesternAnimation/{{Futurama}}'', the Planet Express gets a computer AI (voiced by Creator/SigourneyWeaver) that falls in love with Bender. After she turns into a crazed, murderous {{Yandere}} and finds out that Bender [[YourCheatingHeart is a philanderer]], she decides to merge with him so the two will be together forever. Bender is ''not'' enthused about that. This is apparently a common enough place for robot relationships to go in-universe as it's discussed by Bender and the ship in terms [[DoesThisRemindYouOfAnything reminiscent of marriage]].

** ''Anime/YuGiOhVRAINS'': [[ArtificialIntelligence Ai]] proposes this to Yusaku as a way to stay together forever without worrying about the [[MayflyDecemberRomance lifespan difference]], though Yusaku refuses as even a successful AI-human fusion would result in both their original personalities being overwritten.

* ''VideoGame/FinalFantasyXIV'': Long ago, an Elezan woman known as Shiva and the dragon Hraesvelgr fell in love. Faced with the societal barriers between humans and dragons, and the fact that Hraesvelgr would [[MayflyDecemberRomance outlive Shiva]] many times over, Shiva bade Hraesvelgr to eat her, causing her soul to be joined to his. Centuries later, they remain connected, and Shiva's influence has kept Hraesvelgr from joining Nidhogg's war of revenge against humankind.

->'''Sothis:''' "It's only right, for you and I are joined within our souls. And that is much the same as marriage, don't you think? The stone within your chest is little more than decoration now. That means...it is within your very soul that I exist. [...] And so? Whatever are you waiting for?"\\

* In ''Literature/TheGodsThemselves'' the three-gendered semi-tangible aliens from a parallel universe, known as the Soft Ones, reproduce by temporary merging their bodies [[spoiler: into a single solid mature entity, the Hard One. The final "melding" is permanent]].

* ''Videogame/FireEmblemThreeHouses'': The PlayerCharacter, Byleth, finds themselves SharingABody with a MysteriousWaif that only they can see or hear. It is later revealed that this is [[spoiler:Sothis, an ancient and powerful entity worshipped as a goddess all over Fodlan. When Byleth stumbles into a trap that leaves them trapped in an alternate dimension, Sothis has no choice but to fully [[MergerOfSouls merge their souls together]] so that Byleth can use her power to escape. Later in the game, if Byleth chooses Sothis as the partner they wish to marry, Sothis will reveal that she is in love with Byleth [[BiTheWay no matter the gender]] and they will be married in mind, body and soul, to the degree that Sothis says that Byleth wearing one ring for the both of them is sufficient.]]

** [[ArtificialIntelligence Ai]] proposes this to Yusaku as a way to stay together forever without worrying about the [[MayflyDecemberRomance lifespan difference]], though Yusaku refuses as even a successful AI-human fusion would result in both their original personalities being overwritten.

* Yuma and Astral in ''Anime/YuGiOhZEXAL'' regularly do a FusionDance, where each upgrade represents a new stage in their relationship and a deeper understanding of each other. Astral's LoveConfession to Yuma in the manga clinches the subtext as romantic.

* In the ''Anime/GhostInTheShell'' movie, the goal of the BigBad, Puppet Master, is to merge with Major Kusanagi. This is referred to at various points as "mating" between the two machines. When it happens at the end, the new entity has a child-like body (the only thing Batou was able to find) and is comparable to the "offspring" of the two original beings. The original manga takes this a step further, by explaining that the Puppet Master needs Motoko in order to actually procreate. He could easily copy himself as many times as he wanted, but with no actual variation between the copies, a single computer virus could wipe them all out. The 2nd manga goes on to show that Motoko Aramaki [[spoiler:is one of 27 different offspring that came about from Motoko Kusanagi's fusion with the PuppetMaster]].

'''Sothis:''' Hm? Ah. Well, just wear it on your own finger! Our love is all that matters, not a ring. The two of us are one, for now and ever.

->''"We are one. This is all ours, now."''
-->-- '''Peebee''' (during a MindMeld with Ryder), ''VideoGame/MassEffectAndromeda''

* In ''{{Manga/Hellsing}}'', Pip Bernadotte ends up having his soul merged with the fully awakened vampire Seras after, while dying, he allows her to drink his blood, resulting in him becoming her familiar. While he usually exists inside her and can talk mentally with her he can also be manifested at any time she wills it.

** The episode "Off Colors" introduces Rhodonite, a [[StarCrossedLovers star-crossed]] Fusion of a Ruby and a Pearl who fell in love with each other, as well as Fluorite, a Fusion of six Gems who fell in love with each other at different points, and wouldn't mind adding another if they were the right one.

* In ''Film/TheFly1986'', the concept is brought up in the climax: [[spoiler: Seth, deranged and desperate to retain ''some'' of his humanity as his transformation into Brundlefly nears its endpoint, formulates a plan to genetically merge himself with a "pure" human. When he learns his lover Veronica is pregnant but doesn't want to bear a possibly-mutant child, he kidnaps her and decides she'll be that human. His last lines -- just before he's rendered The Speechless by his One-Winged Angel transformation -- have him declaring "We'll be the ultimate family!...More human than I am alone!" Veronica's ex-lover manages to rescue her from this fate]].

* In ''Film/TheFly1986'' remake starring Creator/JeffGoldblum, the titular antagonist wants to do this with his lover, the film's DamselInDistress. As this is after he becomes a disgusting half-fly HumanoidAbomination, she ''does not'' want to go through with it.