it's emergency if something bad happened in the genital after using the toy. seeking medical help is highly preferred than treatment by the significant other. but i understand, sometimes it's hard to explain the accident to the physician. anyways, the plot is all over the place. i thought noriyuki just developed pleasure because of his previous urethra examinations and sho's hobby isn't much talked about, it was just mentioned at chapter 1 and the rest is just perspective of hesitating to be in a relationship with a dude who formerly attracted to females
guys, the translator/uploader already warned in first chapters that the author has weird plot so get used to it. i love that most characters has all eyes on our MC, almost felt like harem tbh