I'm a Gensokyo Observer 2: Chen's Duty

Synopsis en anglais

After Thomas finished the observing duty and got sent back home by Yukari, few weeks later, the anomaly starts to haunt few more places within Gensokyo again. Yukari wants Thomas to have a break so someone else need to do an observing job and that's when Chen decided to step in. You'll be playing as Chen and you must observe the haunted locations, report the anomaly and survive until sunrise.