Imoto Ga Bra Kondearu Koto Wo Ani Dake Ha Shitteiru. 2 (Kadokawa Sneaker Bunko) [Light Novel]

[Machine Translation] My younger sister, Shuri Namiki, who has a high spec of talent and academic excellence, likes me too much. After accepting my confession before the summer vacation, Shuri's outburst seems to have calmed down and she seems to have stopped snooping and spying on me. Instead, she has come to honestly tell me how much she likes me, and I can't help but be unexpectedly thrilled... But, she's my sister! The second semester starts, and Shuri and I belong to the drama club, and one of Shuri's classmates, Gardenia Kaede, joins the club. Kaede calls me "big brother," invites me out on holiday dates, and suddenly starts to get closer to me! Furthermore, Shuri, Kaede, and my childhood friend Nanami are running for the role of my girlfriend on stage, and it becomes a three-way fight...?

才色兼備・学業優秀とハイスペックな僕の妹の並木朱莉は、僕のことが好きすぎる。夏休み前に告白を受け入れたことで、朱莉の暴走も一旦落ち着き、僕の盗撮や盗聴は止めたみたいだ。代わりに素直に好意を伝えてくれるようになって、不意打ちでドキドキさせられることも...って、相手は妹だぞ!?二学期が始まり僕と朱莉が所属する演劇部に、朱莉の同級生・梔子楓が入部することに。楓は僕のことを「お兄さん」と呼んだり休日デートに誘ってきたり、いきなり距離を縮めてくる!しかも舞台で僕の恋人役に、朱莉と楓、さらには幼馴染の七海の三人が立候補して三つ巴の争いになってきて...!?