"The Possessive Bond: Kacchan's Obsession and Izuku's Innocence"

Kacchan's Obsession and Izuku's Innocence - One-Shot

In a cozy house nestled within a quiet neighborhood, Katsuki and Izuku grew up together. Katsuki, an alpha with a possessive nature, felt a strong connection to Izuku, who was a gentle and vulnerable omega. From a young age, Katsuki's possessiveness began to shape their friendship.

One sunny day, as they played in their room, Katsuki couldn't help but be captivated by Izuku's adorable features. He gently nibbled on Izuku's cheek, leaving a mark to show that Izuku belonged to him. Izuku winced in pain, tears welling up in his eyes, but quickly forgave Katsuki, thinking it was an act of affection.

Izuku: "Ouch! K-Kacchan, that hurt..."

Katsuki: "You're mine, Deku. Don't forget that."

Despite the discomfort, Izuku cherished their bond and didn't want to upset Katsuki.In the evenings, sometimes Katsuki would sneak into Izuku's room and scent his clothes. Izuku would notice and ask what he was doing, and Katsuki would simply say that he was being foolish, leaving his room messy.

Izuku: "Kacchan, what are you doing with my clothes?"

Katsuki: "You're too dumb to keep things clean, Deku. I'm just fixing your mess."

Izuku, innocently unaware of Katsuki's possessive intentions, would hold Katsuki's hands, finding comfort and safety in their friendship. Katsuki would have a maniacal smile towards innocent Izuku, his thoughts consumed with how weak and vulnerable Izuku appeared, wanting to keep him all to himself. He was aware that these feelings were not normal for a child, so he kept them hidden deep within.

As time went on, Katsuki's possessiveness grew stronger. Sometimes, he would hide Izuku's toys, knowing it would make him cry. When Izuku asked him about the missing toys, Katsuki acted as if he didn't know anything, refusing to help.

Izuku: "Kacchan, have you seen my toys? I can't find them anywhere."

Katsuki: "I have no idea where they are, Deku. Stop bothering me."

Izuku's eyes filled with tears, feeling hurt and betrayed. Yet, he couldn't stay mad at Katsuki for long.

But then, something changed. Katsuki started bringing Izuku toys, watching with delight as Izuku accepted them with giggles of joy. Unknown to Izuku, Katsuki had planned it all, enjoying the control he had over Izuku's vulnerability.

Izuku: "Wow, Kacchan! Thank you! You are amazing!"

Katsuki: *smiling mischievously* "You're so easy to please, Deku. It's amusing."

Izuku laughed innocently, unaware of the manipulation behind Katsuki's actions.

As they entered middle school, Katsuki's possessiveness only grew stronger. Izuku, with his trusting nature, believed that Katsuki was simply being protective and caring. However, their classmates quickly learned to fear Katsuki's anger if they dared approach Izuku with friendly intentions.

One day, a classmate approached Izuku, hoping to strike up a conversation and befriend him. Katsuki's possessive instincts took over, and he lashed out violently, breaking the boy's bone. A cruel smile spread across Katsuki's face as he enjoyed his dominance.

Classmate: "Hey, Izuku, we should hang out sometime!"

Katsuki: *smiling while hurting the boy* "How dare you even think about touching what's mine."

Izuku happened to pass by and witnessed the scene in horror. He couldn't control himself and shouted at Katsuki, hoping to stop the violence.

Izuku: "Kacchan, stop! What are you doing?!"

Katsuki paused, looking at Izuku, his mind racing to come up with an explanation to cover his actions.

Katsuki: *thinking quickly* "Izuku, this guy was trying to take pictures of me in the bathroom. I had to defend myself."

Believing Katsuki's made-up story, Izuku's perception shifted. He decided to ignore the boy, unaware of the danger lurking beneath Katsuki's protective facade.

Izuku: "I can't believe he would do something like that. I'll stay away from him from now on."

The classmate, now aware of Katsuki's obsessive and unhinged nature, felt a chill down his spine. He knew that Izuku was unknowingly putting himself in danger.


Years passed by, and Katsuki's possessiveness continued to consume him. Returning home one day, a mischievous grin adorned his face. Izuku approached him, proudly displaying a swollen belly and a fresh bite mark on his neck.

Izuku: "Kacchan, look! I found this cute gift bag, and even though the mark you left on my neck is still visible, I think it's fine. Isn't it lovely?"

Katsuki: *smirking* "It's a reminder that you belong to me, Deku."

Unaware of the danger, Izuku wore his mark with pride, never suspecting the extreme lengths Katsuki would go to possess him completely.

~THE END