Siheyuan: the Family Is Destroyed! Destroy Them All!

[Siheyuan + decisive killing + system + suspense + leaving no one behind] Modern youth traveled to He Yuzhu and obtained the shadow clone system! As long as the following conditions are met, you can return to the original world! [The first is to help the predecessor He Yuzhu avenge his parents; the second is to prevent the identity of the traveler from being discovered; the third is to reach 10,000 points. [For the beasts, it's not not to not kill them, but to kill them slowly and in a rhythmic manner! [One little beast a week, brothers, let's go! Jia Dongxu, the deaf old lady and other beasts will all die mysteriously in the most painful and desperate way. The dead beast can obtain memory fragments. When the fragments are 100% collected, it is discovered that the real murderer is... Whether the protagonist will return to the original world, stay tuned!