you had a childhood friend since kindergarten.

"Nanase Sena." They had been close with her until their second year of middle school, but after being placed in different classes that year, they each grew closer to other friends, and their relationship turned into an awkward, lingering bond.

Even in high school, an uncomfortable atmosphere lingered between them and Sena. And just like that, before they knew it, only half a year of high school remained.

Just as they were wondering if their relationship with Sena would simply fade away without ever speaking again,