2boys, aqua_hair, blonde_hair, blush, cardigan, collared_shirt, fukutsu, gradient_hair, grey_cardigan, hair_between_eyes, hands_on_another's_face, kamishiro_rui, kamiyama_high_school_uniform_(project_sekai), long_sleeves, male_focus, multicolored_hair, multiple_boys, open_mouth, orange_hair, project_sekai, purple_hair, school_uniform, shirt, short_hair, simple_background, streaked_hair, tenma_tsukasa, two-tone_hair, yaoi, yellow_cardigan