The King of Special Forces With a Negative Emotional Quotient Was Reborn on Campus but Was Unexpectedly Welcomed by Girls?!

When Gu Cheng, the King of the Special Forces, was killed by a mysterious force while avenging his best friend's wife and daughter, he was unexpectedly reborn into someone else's body called Xu Yuan, and even becomes a classmate with his best friend's dead daughter! How will he survive and protect his best friend's wife and daughter this time?