2boys, akaza (kimetsu no yaiba), back-to-back, baseball bat, clenched hand, closed mouth, collared shirt, cracking knuckles, dual persona, eyelashes, from above, from side, full body, hakuji (kimetsu no yaiba), hand in pocket, holding, holding baseball bat, kimetsu gakuen, kimetsu no yaiba, long sleeves, looking away, looking to the side, m2 (aonorirenkon), male focus, monochrome, multiple boys, neck tattoo, open clothes, open shirt, pants, shirt, shoes, short hair, sleeves rolled up, smirk, sneakers, sweater vest, t-shirt, tattoo, traditional media, undershirt