[Golden Tube (Ogu)] Oshikko Sensei 1 Redrawn [Castle TL] [Decensored]

An eager young girl with pigtails is lifted onto the lap of a bespectacled doctor in a white coat, who probes her with a red tube while she gasps in surprise. Inside the clinical setting, the doctor explains a special bladder training that forces the girl to endure intense pressure on a sensitive spot, promising an unforgettable experience. As the examination intensifies, the girl's resistance melts into moans while the doctor guides a pearl‑like object deeper, teasing her with promises of greater pleasure.