Romance is kinda like string. 

You first have the material used to make it:

Midoriya Izuku is the courageous vessel of All Might's quirk, ¨All for One¨, which almost destroyed his body the first he inhabited it. But he did not give up, learning the strengths of his quirk, and even made many friends along the way. 

One of those friends was Todoroki Shoto, the handsome boy with an amazing quirk and a troubled past.

Midoriya being Midoriya, he wanted to learn more about this boy's quirk. He actually got more than he bargained for when Todoroki told him his past and how he got his scar. It honestly tore Midoriya up inside and- again- Midoriya being Midoriya, his motto is ¨breaking bones is a-okay, as long as you make friends along the way.¨ 

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Todoroki Shoto is the son of the No.2 hero, Todoroki Enji, hero name: Endeavor. His father wanted him to be perfect, a beautiful image he can use to succeed past All Might, the No.1 hero. Todoroki hated him for it, because it's what destroyed his family, his mother ended up in a mental institute, his eldest brother's disappearance, his scar, his bad vision, his life. 

He didn't like the idea of having friends, he didn't care about his father's vision of his life, he just wanted to finish U.A, become a hero and keep it moving. Until he met that boy. 

Midoriya Izuku, the freckled version of an angel itself, whose somehow older that Todoroki but shorter. 

Midoriya's quirk first resembled to All Mights, that is why he first paid attention to the unruly green haired boy.  

He asked him about it, why his quirk reminds him of All Might's, if they were somehow related. Midoriya shot it down with a mumbled response and Todoroki realized this is what Midoriya was. 

A mumbling fanboy whose not actually a threat to everyone around him. He breaks bones easily, his body can't seem to control his quirk. 

So, he just tells him why he is like the way he is. He can see Midoriya's worried and cowardly expression when he tells him about his quirk married family, how he got his scar. He is totally scared now, Todoroki thought. He will not get in my way anymore, try to be a friend. 

But the face freckled fuck played an uno-reverse-card and made him realize he is nothing like his father, and began breaking down his barriers and getting to his heart. 

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Once the material is made, it is died a certain color, or feeling. 

It could stay white: Clean, healthy, virtuous. A relationship that could end well, and both parties are in love.  

It could be dyed yellow: Happily, Friendly, Warning. A great relationship where both parties like each other and respect one another. But they are sacred to go in an dating relationship. 

It could be dyed blue: Serene, trustworthy, inviting, etc. 

But the reason I am comparing string to this Midotodo relationship was because at first, it was dyed a mix of red and yellow: 

Todoroki does not feel the emotions people around him can demonstrate easily. His sister would say that he had a hole in his heart, it seemed like he was dead inside. 

The world was bleached to him, meaningless. 

Until he met Midoriya. He fell for him at once, his world seemingly bursting with color when that mumbling boy was around. He'd get blushy, nervous, quiet (of course, he was always quiet, but when Midoriya was around, the world felt quiet and it was if he was going to mess it up by talking.) Midoriya seemingly wanted him as a friend. Okay. He can do that. It was weird at first- it still is- but he got the hang of it by their 2nd year of high school. 

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Midoriya doesn't exactly know when he fell for Todoroki. Maybe it was when he first saw him, he know he was special, and when he learned his background, he wanted to protect him.  Make him feel better, become his friend.

It was his mother's genes. It was All Might's message. He wanted to help others. He didn't expect himself to fall in love with Todoroki. It wasn't full blown love yet- it was around their 2nd year when he realized how much he thought of him. Looked at him. Wanted to make him feel beautiful, to pepper his scar with kisses, in hopes he would fell his love through the dead patch of skin. Make his world seem less dull.

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Then the string became dyed another color: 

Black.

Midoriya hates the stares from girls. They fawn over Todoroki. Think their love could compare to his. All they want is his pretty face, his fame, his money. Even Yaoyorozu, more in love with his pretty face and his anatomy than his feelings. He feels like Todoroki would be more happy with someone who understands him. Fell in love for what's inside him. Would not break his heart. That person is him. Only him. Everyone else would die by his hands if they tried to touch him and/or break his heart. 

- 

Todoroki realizes that Midoriya has gathered attention from some girls. Even a few men, if he is not mistaken. He is jealous, another new feeling Midoriya taught him. 

Why does everyone try to take the happy things away from me, Todoroki thinks, as he watches Ochako fawn over him. Midoriya blushes at her words. She blushes back, a gleam in her eye. Love. This cant happen, Todoroki thinks, having a panic attack. The person I treasure most being seduce by a poor kirby looking character. I finally found a meaning in life and everyone has to take him away.

He now feels another emotion he has felt before. And even a little bit of a new one. 
Rage... Murderous rage. 

Yes, yes. He would kill anyone who would take his muse. Anything and everyone who dare even looks at him in a sort of way that would resemble love. 

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Now we have the materials for this string, this love, and the dye, the nature of it. How long would this string lengthen? Until the day of their death, when they are found, committed suicide after killing 13 people, injuring 2 at the age of 22. 

But hey, why skip straight to the stitching/mending? Before we put the thread through the needle, let'us go through the events to their decent into madness. 

You are already locked in. Strapped in, put your head up, pay attention before you prick your finger. Hold on tight and enjoy the ride. This is ¨A thousand Kills Until Your Mine¨

Not bad for a bad writer with extreme writers block, huh? 

The last line was cringy, but, bars, eh?

- 1113 words