I Really Don't Want to Be in Too Much Pain

A scream came from late at night, causing Wen Yan to step into the mysterious and strange otherworld. However, he was not afraid of those ugly and twisted monsters, but felt very happy. Because--"Since there are these monsters, then there must be a way to bring the dead back to life!"-----Wen Yan Ps: This book is purely fictitious. Any coincidences are purely similarities.