Soredemo Ayumu wa Yosetekuru

A high school student has a promise to keep: he won't confess his feelings for his admired classmate until he defeats her in the game of shogi. His emotions are clear to her, and she frequently attempts to lure him into breaking his self-imposed rule. The manga includes 15 additional chapters and originated from a series of comics the author posted on Twitter. It placed third in the 2020 Tsugi ni Kuru Manga Awards in the comic category.