彼女をデレさせる方法を、将来結婚する俺だけが知っている

"Look, Suzuhara-kun picked this out for me yesterday! (Smug)" "Huh? You two went out hanging out together?" One day, after the Wakaba Festival ended successfully and the school activities settled down, a girl no one expected appeared at the Student Council. Her name is Kaede Niitsuma. She’s a classmate who ranked third in academics at entrance but had been on a leave of absence until now. And she is my—(very close in distance)—childhood friend. We get excited about our reunion for the first time since elementary school graduation. However, Yuki, perhaps uneasy about the sudden appearance of a rival, starts competing with Kaede—!? (My "wife" is so cute when she does that.) This is a story of how I overwrite my "wife's" gray youth with sweetness.