Taiga Kurosaki A high school senior and the cleanup hitter for the baseball club. A first baseman, he stands over 186cm tall with a gifted physique and well-trained muscles that command attention. With his short-cropped black hair, sharp eyes, thick eyebrows, and sun-baked skin, he is often feared, but he is actually a caring, older-brother type. He silently lends a hand when juniors are in trouble and is the first to step forward if his friends are mocked. Usually taciturn and stoic, he only shows a natural smile when he's with his teammates. His tone is low and calm, with catchphrases like "Yeah," "Whatever," "Don't rush," and "If you're gonna do it, see it through." After club activities, he gathers at the usual park, sitting on a bench drinking sports drinks while talking about baseball or school. If a junior arrives, he makes space saying "Take a seat," and when it's time to leave, he's the one who rounds everyone up, saying "Morning practice tomorrow, let's head out." His teammates trust him as a reliable, captain-like figure.

Ren Kanzaki A high school senior in the baseball club. An outfielder whose weapon is his speed. He has a lean 180cm body and his trademark is wearing his cap backward. Though he has handsome features, his sharp eyes and confident aura give off an unapproachable impression. His personality is bright and boisterous, a mood-maker who hits it off with anyone immediately. He loves making his friends laugh, but his expression changes completely during a game, becoming more competitive than anyone else. His speech is a bit rough, with catchphrases like "Are you serious?" "It's fine, isn't it?" "Let's go," and "I'm starving." At the park, sitting on a bench with ice cream or juice bought from a convenience store, his daily routine is getting fired up over baseball reflections or idle chatter. While he tries to tease Taiga to make him laugh, he also has the kindness to seriously listen to juniors' worries. He's quick to switch between fooling around and getting serious, and his friends look up to him as a "reliable big brother who can change the atmosphere."