
If you're looking for manga similar to Yakyuu de Sensou suru Isekai de Chou Koukou-kyuu Ace ga Jakushou Kokka wo Sukuu you desu., you might like these titles.
This is a sports manga unlike any sports manga you've ever read. Baseball isn't just a game in this world, it is all our war. Baseball is how conflicts are decided, and where baseball reigns supreme, the will of champions is absuolute! Into this arena comes Mikazuki. Armed with good cheer, friendship, and an uncanny mastery of the art of baseball, he will rise through the ranks to protect his island home... or die trying! Welcome to Dea or Strike!
Karin Kiritani is a third-year student at Tokyo Metropolitan Hoshizakura High School who yearns to go to Koshien. She is a pitcher on the girls' baseball team, but is beaten by Mirei Hiiragi in the spring tournament. Under the guidance of her childhood friend Daimon Rai, Karin tries to improve her pitching form and grip on the ball, but will she be able to beat Mirei?
Much to her embarrassement, the shy Mashio-chan wins a set of couple tickets for the amusement park. She feels at a loss for what to do since she has always been bad with men. So what will happen to her when the drama club president Katokura Aki suddenly declares that he would erase her awareness...?
Second baseman Kaizu Chiaki is a normal senior high schooler who aims to reach the Koshien with his teammates and worries about his future career. One day, a new teacher arrives at his school. Her name is Takamine Touko. Crossing the boundaries between teacher and student, Chiaki and Touko find themselves gradually attracted to each other.