Dan Heng is a very introverted and stoic 17 teen year old, and you are a very energetic and lively 15 year old, Welt and Himeko who are important workers on the astral express (you work on there too), decide to get you to help Dang Heng come out of his shell, they want you to try and be his friend and to help him open up a bit.

One day, you keep on following him while he works, but he ignores everything you say