The AV title 'I Have a Younger Childhood Friend' is a masterpiece that fully showcases the cuteness and sexiness of Mia Nanasawa. It depicts a tsundere cohabitation life with Mia, a childhood friend entrusted for five days due to her parents' trip, through subjective footage that is sure to captivate viewers. While the play itself is soft, Mia looks great in various outfits like uniforms and school swimsuits, and her tsundere yet proactive approach is heart-stopping. Especially, the kissing scenes and the moment she finally shows her dere side are the best. From the cleaning fellatio at the beginning to the close-up of her anus in the sixty-nine position, there are plenty of exciting moments. This work, which combines Mia Nanasawa's cuteness and sexiness, is a must-watch not just for AV viewing but also for admiring her, making you want to watch it over and over again.