Jitsu wa Imouto Deshita. ~Saikin de Kitagiri no Otouto no Kyorikan ga Yatara Chikaiwake~

Turns Out She Was My Little Sister All Along. ~Lately, My Reserved Younger Brother’s Personal Space Has Gotten Suspiciously Close~ A secret sibling bond that feels more like romance!? A heartwarming yet chaotic love story unfolds between these two!

After our parents remarried, Akira became my stepbrother during my high school years. Though he’s adorable, his quiet nature stems from his complicated past. Wanting to make him feel at home, I showered him with attention—only to realize my feelings ran deeper than sisterly affection. Before I knew it, the emotional gap between us had shrunk to almost nothing.

One day, I mustered the courage to ask,
“Hey… do you, um, like me?”
“Obviously,” he replied without hesitation.

But things weren’t that simple. The more we talked, the clearer it became—Akira wasn’t just my brother. The truth hit me hard: she was actually my sister! Confusion swirled in my mind as I struggled to process this revelation.

“I prefer the way we’ve always been,” I admitted. “But honestly… I want to be even closer to you now.”

Akira, however, had other plans. Instead of settling for a sibling relationship, she began pursuing me—not as family, but as something far more intimate.

A playful, heart-fluttering romantic comedy featuring a little sister who’s too charming and bold for her own good!