Ekoda High's new student is the recently returned Kudo Shinichi, but it seems there's more to his arrival than a simple change of schools. There is a new danger lurking, but with all the problems riding on his shoulders, Shinichi might not be able to handle it alone this time. :Future KaiShin:

ADOPTED from Luna Darkside! Assistant police inspector Kudou Shinichi happens to save the life of yakuza boss Kuroba Kaito. Things get... complicated. /policeofficer!Shinichi x yakuzaboss!Kaito/ KaiShin/ShinKai [[[CURRENTLY RE-UPLOADING THE REVISED VERSION, NEW CHAPTER (10) SOON!]]]

In order to catch a pair of art thieves, Shinichi and Kaito go undercover. As boyfriends. /ShinKai & KaiShin, oneshot, complete/

When Shinichi is forced to crossdress for a mission, nothing eventful really happens. That is, until he ends up getting drunk and flirting with a certain thief and a Kansai detective. Ever since, the life of one Kudou Shinichi was never really the same.