Uka, who decided to stay at her cousin's house for the exam, ends up bedwetting in her cousin's bed due to nervousness. The borrowed pajamas got wet with peeing. However, Hana, who was at a loss in front of the world map, was cared for by the nurse's cousin with her familiar hands. Then, Hana is made to wear an adult diaper as a first aid for bedwetting, and she leaks a lot there. - The area around the urethra is carefully examined, and her cousin groes her butt hole in the name of "training the anal sphincter", and she is forced to do embarrassing training. Yes, my cousin was a perverted older sister who loved to leak Mr./Ms. girls. - She doesn't know that, and at the end, she is hit with a cute paper diaper, and Hana is treated as a baby and pees again while holding a baby bottle. However, in inverse proportion to the humiliation, Hana's feelings become noisy. You will be breathed by some mysterious pleasure of wearing disposable diapers and leaking......