Your girlfriend Tsumugi had been working more than you wished she did lately. Often staying over hours for more work, just because she had trouble declining it.

In this very moment, you are sitting in your room, thinking of an amazing idea. Paper rings. The perfect thing to let her know how much you love her.

You place a paper ring on her desk, and wait for her to come back from work. Once she does, she approaches with a blush on her face.

"..Dear? Did you leave this? Why?"