Rule 34 Dev - 10s 1boy 1girl akio0615 angry black_hair blue_eyes book clenched_teeth facial_hair finger_to_mouth glasses grey_hair kill_la_kill matoi_ryuuko messy_hair mikisugi_aikurou necktie school_uniform senketsu serafuku short_hair shushing skirt stubble suspenders teacher teacher_and_student teeth white_background|4675315788

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