35 cm Height Difference, Sharing a Room with a Beastly Childhood Friend

"Quiet, tall, and unfriendly"—that's Kisaragi Kasumi's childhood friend, Yagami Soma. Their height difference has earned them the nickname "Odd-to-Odd Duo," and now they're roommates since going to university! Kasumi is interested in sex, but her only redeeming quality is her seriousness, so romance seems like a pipe dream... or so she thought. Then Soma suggests, "If we're both interested, why don't we give it a try?"—!? A tall, unfriendly guy x a serious girl with zero romantic experience—a frustratingly sweet childhood friends romantic comedy that starts with physical intimacy, Volume 1♪

(Source: Kanonmia Comics, translated)