This work, which has generated buzz with its stimulating worldview crafted by a tsundere little sister, features Nanami in a daring setting of not wearing panties while in her school uniform. However, there are requests for scenes indicating 'I'm wearing them!' behind this boldness. Her affectionate gestures while calling her brother create a heart-thumping atmosphere, but opinions on the girl's makeup seem to be divided. Although she displays overwhelming boldness in the 'kupa' pose, the angles in the insertion scenes feel somewhat half-hearted, resulting in disappointed expectations from viewers. The focal point of the evaluation is how the surprise behind not wearing panties can heighten excitement. Unfortunately, some viewers expressed disagreement with certain directorial elements, leading to varied overall satisfaction. There is a strong curiosity about the content, yet many challenges remain in terms of direction, with viewers clamoring for a more 'twisted' and stimulating development. Ultimately, while it serves as sufficient material for those who appreciate the 'kupa' pose, there remains a lingering impression of something being lacking.