Story cover for Katsuki's Baby Sister by Yuzuki16
Katsuki's Baby Sister
  • WpView
    Reads 1,407,221
  • WpVote
    Votes 46,374
  • WpPart
    Parts 116
  • WpHistory
    Time 18h 40m
  • WpView
    Reads 1,407,221
  • WpVote
    Votes 46,374
  • WpPart
    Parts 116
  • WpHistory
    Time 18h 40m
Complete, First published Jan 28, 2018
Bakugo Katsuki is known by everyone for his always angry personality and foul mouth despite him wanting to be a hero. One day his mother came home with what he called an extra. A little girl no older than three. 

She stayed a day with them when his parents decided to adopt her much to his utmost annoyance. Now Katsuki has to adapt to having a younger sister, while trying to keep his reputation and aggressive nature that just doesn't seem to scare the girl away when it should. 

How is he going to handle this? Being a big brother is not an easy task, especially for Katsuki where there is shit lurking in the shadow of every corner he turns. 


Warning: Cursing, cause it's the Bakugo family and Katsuki is in it. 

I do not own Katsuki, his family or anyone from BNHA. I only own my characters that don't belong with the main show.
All Rights Reserved
Series

AU: Little Sister/Brother Fanfics

  • 116 parts
  • Izuku's Baby Sister [ON HOLD] cover
    50 parts
  • Todoroki's Little Sister cover
    79 parts
  • Not Alone cover
    66 parts
Table of contents
Sign up to add Katsuki's Baby Sister to your library and receive updates
or
#28bnha
Content Guidelines
You may also like
𝔼𝕟𝕥𝕚𝕔𝕖𝕞𝕖𝕟𝕥 | 𝕂𝕒𝕥𝕤𝕦𝕜𝕚 𝔹𝕒𝕜𝕦𝕘𝕠 by SaltedPretzel_
40 parts Ongoing Mature
𝐒𝐡𝐞 𝐝𝐞𝐬𝐩𝐢𝐬𝐞𝐬 𝐡𝐢𝐦 𝐚𝐧𝐝 𝐡𝐞'𝐬 𝐧𝐞𝐯𝐞𝐫 𝐲𝐞𝐚𝐫𝐧𝐞𝐝 𝐟𝐨𝐫 𝐚𝐧𝐲𝐭𝐡𝐢𝐧𝐠 𝐦𝐨𝐫𝐞. Rin Akimitsu is smart, resilient and infallible. Nothing ever gets through her impenetrable walls of steel--- that is, nothing except him. Ever since they met in their second year of high-school, Rin has loathed Katsuki. His rude remarks and self indulgence have always rubbed her the wrong way. However, when her life falls to pieces, he's the only one to pick up the pieces for her by offering her a place to stay. Stuck between a rock and a hard place, Rin has no choice but to live with her biggest rival. ••• Katsuki Bakugo is rude, brash and destructive. In his world, nothing is of equal importance but number one--- in his eyes, himself. Atleast, that's what he'd like to tell himself if he weren't head over heels in love with the one girl he can't have. She'll never return his secret feelings and he's perfectly fine with admiring her from a far. That is, until her life is put in danger. Torturing himself with having her all up in his personal space was never his plan but love makes you do crazy things. In Katsuki's case, that's housing the one thing he can't have. ♡~♡~♡~♡~♡~♡~♡~♡~♡~♡~♡~♡ •This book is set five years after the war when everyone is an adult, there may be a few spoilers but it's kept to a minimum. •I own all OC's you come across during reading. •Some events and plot points may stray from the manga and anime.
My brother's best friend by bubbly_writter
15 parts Complete
Imagine falling in love with your big brother's best friend that knows you since diapers? Embarrassing right? Well that's what I did. Me, Izuku Kirishima did the mistake of falling in love with Katsuki Bakugo. I'm Eijiro Kirishima's little brother, just one school year younger. Yup! I skipped a year, that's what earned the nickname nerd, and well.. Many more that are not very nice to say. I'm bullied, A LOT! I won't tell my brother Eijiro tho! He has no time to worry about my little high school problems. Friends? Don't have any. Lover? Single for life. Loving family? They're the best, It's just me my mom and my big bro, and that's all I need! But I honestly am okay with my life. The only thing I'm trying to change in my life is my feelings for Kacchan. It just feels wrong, why? I don't know. Because he's my brother's best friend? Because he's 2 years older? Because I'm a Nerd and he's badass? Because we're both guys? I don't know, but one thing's for sure, I can't show or tell these feelings to no one. No one knows I'm gay because I don't need more bullying, that's one thing I know. Anyways why not read my fucked up life and maybe my stupid feelings will be returned! And even better, I could get in UA to become a hero! Just kidding that's something impossible.. Right? Bullying Swearing BNHA characters are not mine Art not mine, credit to artists. In this book Izuku is Eijiro's brother Also I'm sorry for modifying things in the story from the original BNHA series and the time line!!! MHA spoilers
You may also like
Slide 1 of 18
Lots Of Love (Previously Love You More) cover
𝘻𝘪𝘯𝘨 𝘣𝘰𝘰𝘮! | 𝙗𝙖𝙠𝙪𝙜𝙤𝙪 𝙭 𝙤𝙘 cover
His Reasons (Todoroki X OC) cover
Wings - Katsuki Bakugo x Reader-ish cover
Love Letters || ɪ. ᴍɪᴅᴏʀɪʏᴀ cover
My personal Servant (Bakutodo) !ONHOLD! cover
Work For Your Affection (BakuTodo) cover
Falling In The Black cover
Haven ➵ 𝑠. 𝑡𝑜𝑑𝑜𝑟𝑜𝑘𝑖 cover
Devotion ↠ Katsuki Bakugou x Reader cover
It's a long distance thing cover
The One~(Todoroki x reader)✔️ cover
𝔼𝕟𝕥𝕚𝕔𝕖𝕞𝕖𝕟𝕥 | 𝕂𝕒𝕥𝕤𝕦𝕜𝕚 𝔹𝕒𝕜𝕦𝕘𝕠 cover
 𝐖𝐑𝐀𝐈𝐓𝐇 || ᵇ.ᵏᵃᵗˢᵘᵏⁱ cover
Plus Ultra|Shouto Todoroki x Reader x Izuku Midoriya cover
𝕃𝕠𝕧𝕖𝕝𝕪  • 𝕋𝕠𝕕𝕠𝕣𝕠𝕜𝕚 𝕩 𝔽𝕖𝕞!𝕣𝕖𝕒𝕕𝕖𝕣 cover
Green Hope :: BakuDeku cover
My brother's best friend cover

Lots Of Love (Previously Love You More)

16 parts Complete

Izuku Midoriya was born with a very strong quirk but he was utterly terrified of it. Instead of revealing how powerful he actually was he just created a lie that he was quirkless. As time grew on Izuku realised that he would inevitably need to show everyone his power. His only friend, Katsuki Bakugo, had problems of his own. He had extreme anger issues and he had a need to be better than everyone. Despite that, Katsuki still made time for Izuku and even though he knew that Izuku was very strong, be didn't leave his side once. No matter what, Izuku knew Katsuki would always be there. Getting into UA was easy, but facing the challenges of a crush, an adorable best friend, powerful quirks, and a bad home life is hard. Izuku has resorted to a bad way of easing the stress away. How will Katsuki react? What will be learn about Izuku's life as he overcomes both his and the greenettes struggles. A story of love, hate, and understanding. Two boys in a love that could either concor all or fall to the pits of evil, read 'How Much I Love You,' to discover their tale. There are seventeen chapters all others are authors notes.