Question: is merman in my tub a bl?
Answer: Orenchi no Furo Jijou / Merman in my Bathtub is a 4-koma shoujo title that looks like it's yaoi, but it's not. The premise is pretty straight-forward, too. Our hero, Tatsumi, is an average high school boy living on his own (which is so weirdly common in manga) in his grandfather's house.