This work features a cute stepsister as the protagonist, with the highlight being the sexual harassment plot that takes advantage of her timid personality. The daily teasing of her nipples protruding from a braless T-shirt is sure to excite just by watching. Especially the standing doggy style scene in the kitchen is breathtaking, significantly elevating the quality of the work. The transformation of the sister into a super-sensitive premature ejaculation体质 through days of nipple harassment is a testament to the casting's success. However, the nipple attacks could have used a bit more creativity. Scenes with more forceful pulling or biting would have heightened the excitement even further. Overall, it's a work that can be thoroughly enjoyed if one doesn't mind the concept.