By2's Yumi has been busy since ending her high-profile relationship with Mario Ho last year.
Last month, she was spotted making out with a French man at a pub and now, she was seen hanging out with Elva Hsiao's ex-boyfriend Elroy Cheo.
According to Asianpopnews.com, the two have been rumoured to be "hooking up".
In the photo of them together, Yumi is seen leaning closely towards Elroy.
She reportedly removed the photo from her social media after a few hours which led to speculations that she was afraid of their relationship being exposed.
Her recording label Ocean Butterflies declined to respond to the photo.