Beautiful otaku incident book

During a vacation trip, the hero Maya not only meets Du Zefeng, a boy whom Xiao Yao has been secretly in love with, but also encounters a series of murders.The originally peaceful seaside town turned deadly silent after successive death incidents. Is this a curse or man-made?The residents of the town, Du Zefeng and his party, and even Maya and his party, who is the culprit behind this series of incidents?murderer's...