This is the second track the duo has released as part of an ongoing collaboration with Naoki Award-winning authors: Rio Shimamoto, Mizuki Tsujimura, Miyuki Miyabe and Eto Mori. “好きだ [Sukida]” is based on Mori’s original novel, Hikari No Tane (Seed of Light) A Story to Read When You First Profess Your Love.