Trickster

Trickster is an original detective anime series that aired from 2016 to 2017.

Inspired by the works of Edogawa Ranpo, the story is set in the 2030s and follows a private investigation firm known as the Boy Detectives' Club, founded by Kogoro Akechi. One of their junior members, Kensuke Hanasaki, is out solving a case one day when he happens upon Yoshio Kobayashi, a mysterious amnesiac boy with an inability to die. After seeing his abilities in action, Kensuke offers Yoshio a deal: join the Boy Detectives' Club and help them solve cases, and in exchange he will find a way to help Yoshio die.

OP 1
Both Kobayashi and Hanasaki appear naked.

Episode 7
Hanasaki has fun with Kobayashi, who later strips naked to dry off.

Episode 8
Hanasaki is seen getting a checkup in a flashback.

ED 1
Kobayashi's shirt flies up