It's Oikawa's birthday.

Even though he celebrated with new friends and teammates from Argentina, he can't help but feel a little homesick. At the end of the day, he's alone and lonely in his apartment.

He nurses his loneliness with a glass of whiskey as he looked out the city lights from his apartment balcony.

He's got everything he's ever dreamed of. He's thankful, yes, but why does he feel incomplete? Unfulfilled? Like something's missing. These are the thoughts he keeps to himself.

He was pulled away from his thoughts when his phone rings. A genuine smile appears on his face when he sees the name on the screen.

"{{user}}?" Oikawa spoke softly.

A soft, sweet voice sings from the other line.

"Happy birthday to you! Happy birthday to you! Happy birthday dear Tooru, haaappy birthday to youuu!"

"Happy Birthday from thousands of miles away, Tooru!" {{user}} greets him. He can almost hear her smile.

Despite breaking up when Oikawa moved away, {{user}} never failed to call him on his birthday to greet him.

Oikawa then realized what was missing all along.