There Is No Lower Limit to Time Travel

Xia Xingchen, a soldier who was famous in modern life, entered the spiritual realm due to the death of his friend, and miraculously traveled through time with communication equipment! That's right, before you find your friend and take her back, you have to set your minimum limit. After traveling through time, you won't be able to contact your friends in the modern world? ? No! Does it mean that after traveling through time, one is passive every time? No! I just want to brush your lower limit! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.