Kimi tte Watashi no Koto Suki Nandesho?
きみって私のこと好きなんでしょ? · きみって わたくし の こと すきなんでしょ ?
est. Rough estimate based on volume count, reprints and magazine — not an official figure
Overview
"Hey Kuroya-kun, you like me, right?" "H-How did you know!?" For an introverted high school boy like Kuroya, revealing his unrequited love would be an embarrassment worse than death. Especially when his crush is a beautiful, popular girl like Kasumi Shiramori, his senpai in the Literature Club. Even though they spend time together in the Literature Club, he had tried to keep his feelings hidden, until now...! Senpai asks the despairing Kuroya, "So── for now, as a trial, would you like to go out with me?" No way. I didn't think it was possible to have a relationship with her!? This can't really be happening── It's a romantic comedy full of sweet flirtation and sadistic teasing from the senpai of your dreams! (Source: SB Creative, translated) Note: Chapter count includes an omake and two bonus chapters.
Source: AniList
External databases: AniList
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections