I transmigrated into the world of Detective Conan, but inherited Gray's body and became the neighbor of the Grim Reaper Elementary Schooler?
"I just want to be a quiet, carefree couch potato. Why is that so hard!" Faced with one incident after another, Gray only wanted to slack off, and could barely keep from crying.
(Note 1: This book is also known as Is There Something Wrong with Me Shipping Girls in the Conan World?)
(Note 2: This is a Detective Conan fanfic. The protagonist is Gray simply because I'm thirsty for her.)
(Note 3: The heroine is Masumi Sera! I'll do my best to have her appear early.)