Yuya was excited to learn that Nanami, his long-admired 'big sister,' was coming home after a long time. Initially, he couldn't speak properly due to nervousness, but as they spent more time alone together, they gradually opened up… With the help of alcohol, they exchanged a kiss. Yuya couldn't contain his arousal from tasting an adult's kiss for the first time, and Nanami too could not suppress her bodily cravings. Then, late at night, Nanami visited Yuya's room…
