Nintendo announced during its Nintendo Direct presentation on Wednesday that it is developing a remake of both Famicom Tantei Club (Famicom Detective Club) games for the Switch. Famicom Detective Club: The Missing Heir (Famicom Tantei Club: Kieta Kōkeisha) and Famicom Detective Club: The Girl Behind It (Famicom Tantei Club Part II: Ushiro ni Tatsu Shōjo) will be available separately on May 14th.
The original games, which shipped for the Famicom Disk System add-on for Nintendo’s Famicom console in 1988 and 1989, were never released outside of Japan. The remakes will be the first English release for the game.
Ref: https://www.animenewsnetwork.com