Koi wo Shitara Konna Kao

One day, Kouhei suddenly quit baseball, which he had been playing since childhood, to prepare for high school. At high school, he meets Souta Kihara, another popular boy in his grade. One day, Kouhei saved Souta from a falling piece of pipe, Souta was worried about Kouhei's shoulder, saying, "If you get hurt, you won't be able to throw a ball.'' Slowly over time, the two of them grow closer, although Kouhei wonders how Souta knows that he used to play baseball.

(Source: drap Comics DX, translated)

Note: Chapter count includes an additional one-shot "合鍵"