Flourist and a High school boy. (Takashi & Riku)
Takashi's nephew (Arashi) and Riku's Brother (Aoi) are classmates.
*It feels like Riku fell in love with Takashi too fast, and I think Takashi should've considered since Riku is a high school boy and already did it with him (but oh well, he have his consent so.) Plus, I don't intended this to sound rude but japanese fall in love too fast, huh.
The Wolf in the Flower Shop