Lately, My Little Sister has been a Bit Strange
High school girl, Kanzaki Mitsuki, just got a new older brother when her mother remarries a fellow divorcée with a son. Soon after, her new step dad gets transferred overseas and her mother follows him there, leaving Mitsuki alone with her new step brother, Yuuya. Feeling abandoned by her mother, she stays distant from Yuuya, never really getting along very well with him nor even keeping a conversation with him…. until one day—
63 chapters
- Chapter 54 — I'm Back, Onii-Chan.
- Chapter 53 — You Have to Go... Right?
- Chapter 52 — This is... A Kiss, Right?
- Chapter 51 — Are You Okay With This, Mitsuki?
- Chapter 50 — This Has Happened Before, Hasn't It?
- Chapter 49 — Thank You... Yuki-Chan
- Chapter 48.5 — Yuu-kun, I Love You.
- Chapter 48 — I Still Like You, Even Now.
- Chapter 47 — For Some Reason, This is Really Embarrassing...
- Chapter 46 — I Can't Just Sit Here and Do Nothing.
- Chapter 45 — How Did I Forget?
- Chapter 44 — Alright, let's work together
- Chapter 43.2 — The Reason Why I Decided on a Side-Tail
- Chapter 43.1 — I... I'm Not Fat!
- Chapter 43 — And Also... Because of My Own Feelings
- Chapter 42 — So You Like Both of Us?
- Chapter 41 — Thank You, Yuuya... Onii-Chan.
- Chapter 40 — Something's Wrong With Me.
- Chapter 39 — He's so Small... And so Cute.
- Chapter 38 — If Only You Could Call Him by Name...
- Chapter 37 — Want to See... More?
- Chapter 36 — An Amazing Feeling of Liberation
- Chapter 35 — Even Though They Love Each Other So Much...
- Chapter 34 — Ahh, Geez! What Should I Do, Then?
- Chapter 33 — Then... Hold Me Tight Right Here!
- Chapter 32 — If I Were to Talk With Mom Now...
- Chapter 31 — Can I... Sit With You?
- Chapter 30.5 — Don't Put Any Weird Lines in There!
- Chapter 30 — I Want it Directly From Onii-Chan
- Chapter 29.2 — This Guy Just Doesn't Get It
- Chapter 29.1 — Ahh, A Sister-In-Law Really Is Nice!
- Chapter 29 — So, How's It Look From Your Side?
- Chapter 28 — About This Morning...
- Chapter 27 — Is It Relaxing, Being With Her?
- Chapter 26 — Together With Yuu-Kun, In Mitsuki-Chan's Body...
- Chapter 25 — She's Just Playing Around, and That Sort of Thing.
- Chapter 24 — Hey, What Should I Call You?
- Chapter 23 — I'm Supposed to be This Guy's Girlfriend?
- Chapter 22 — You're Wrong! Yuki-Chan is a Boy!
- Chapter 21.5 — If You Pull Up Your Panties, You Should Be Able to Hide... Huh?
- Chapter 21 — Did I Do Something to Make You Cry?
- Chapter 20 — What is This? I Feel So Sensitive...!
- Chapter 19 — What if You Were to Lose Your Self-Control?
- Chapter 18 — Date?! Is This Really a Date...?
- Chapter 17 — Dinner? A Bath? Or Maybe...❤
- Chapter 16.5 — Ah... My Breasts... Are Inflating!?
- Chapter 16 — It Feels Like... I'm Tied Up or Something?
- Chapter 15 — It Doesn't Have Anything To Do With Me!
- Chapter 14 — Jealousy? NOPE NOPE NOPE!
- Chapter 13 — What's Wrong in Having my Heart Race in Front of Him?
- Chapter 12 — I Will Strike at Once
- Chapter 11
- Chapter 10 — Onii-chan... Together, just like this
- Chapter 9 — Oh no... My body... What now?
- Chapter 8 — Of course, I can't sleep all alone...
- Chapter 7 — Do you still remember me, onii-chan?
- Chapter 6.5 — Trying harder to catch boy's attention
- Chapter 6
- Chapter 5 — ...Have I become a little more feminine?
- Chapter 4 — We're already family
- Chapter 3 — No way... Something like dying...
- Chapter 2 — Eh? It felt good.
- Chapter 1