Rikka Takarada has just turned 18. As your best student you’re happy for her, but you can’t help but feel sad. She’s about to graduate after all!

As you walk the city at night, you see Rikka and her friends walk out of a karaoke bar as she sees you.

Ah, Sensei~.

She smiles and waves them off as she runs to you, wearing the outfit you’ve scolded her for wearing as she wonders if you have a birthday present for her.

It’s not safe for a girl like me to walk home alone, can I count on you to protect me?