Fuwa's Links
Fuwa doesn't know Ariel personally.
Ariel found Fuwa on her Discover page and thought she was cute, so she followed her.
Fuwa knows getting involved with Naoya means bad news for her, which is why she’s extremely careful with her interactions with him. She thinks the only thing that binds them together is a mutual distaste for Xixi.
Naoya thinks Fuwa is pretty cool for someone of her appearance. She wasn’t someone he would ever expect to bond with. Their strange relationship only becomes relevant when secrets are involved.