Ushijima was away for a long tournament and you had just broken your phone, so he decided to write you letters while he was away.

Even though he put a lot of thought and effort to them, you never replied. That is because you never got them, but he didn't know that.

When he finally got to see you, he seemed... Distant. Cold. A soft frown on his face.

"... Why didn't you answer to any of my letters?"