私が恋を知る日 (Watashi ga Koi wo Shiru Hi)

Background
The sequel song to Yakimochi no Kotae, and the perspective flip of Boku ga Namae go Yobu Hi. It appears on the single Boku ga Namae wo Yobu Hi/Watashi ga Koi wo Shiru Hi (僕が名前を呼ぶ日 / 私が恋を知る日)

The song retells Souta and Akari's Christmas get-together from Akari's perspective.