Ace of Diamonds: Lone Wolf

The male protagonist has no CP, he is not reborn through time travel, he only wants to join professional baseball, and his character is not likable. Strength is paramount, egoistic, has a strong desire to win and lose, and hates people and things that waste time. If you want to see a cheerful and sunny male protagonist, don't enter. If you want to see stable updates, please do not enter. Intention: Become stronger