高村家、家族旅行で熱海へ!
両親には夫婦水入らずで出かけてもらって、光太は一人で観光地を巡って旅行を満喫する。
その後、旅館に戻って休憩していると、お風呂に入っていた藍花が浴衣姿で部屋に帰ってきた。
いつもとは雰囲気が違って和テイストの藍花に思わず目を奪われてしまう光太だが、藍花はその視線を素早く察知していて…。
The Takamura family heads to Atami for a trip! While his parents enjoy some couple time alone, Kota explores the sights by himself, making the most of the trip. Later, as he rests back at the inn, Aika returns to the room in her yukata after bathing. Kota can't help but be captivated by Aika's different, more traditional Japanese-style vibe—a change from her usual self. But Aika is quick to sense his gaze...