Ghost Corps from Another World

This book is a bit of a slow-burning type, so it is not invincible at the beginning. Tang Ye traveled to another world and became the prince of the Angel Empire, Kalian, but was looked down upon because he had no magic talent. But during time travel, you get a ring that recognizes the owner. The ring can summon the ghost army just like the ghost mask. However, the male protagonist cannot summon the ghost army in large numbers due to his physical strength. Don't look at your resume. To make up the word count, look at your story. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.