A bit of a incompetent statement. While some of the hate certainly comes from incels (also not cool on your part to use virgin as an insult), being a female of about the same age, I can confirm I don't like this character because she's comes off as thoughtless and extremely childish, which unfortunately is a common trait with female characters in Japanese media. Certainly, most of what happened was not really her fault, but if she had been a little smarter/wiser like her parents, more problems could've been avoided, like not talking to (and promising to meet) the guy your parents are clearly uncomfortable around. She acts like a dumb preteen, not like a college student.The real reason Reika is hated? Incels and basement dwelling virgins. She did literally nothing wrong. The abuse by Nobuto? Not her fault. The guys approaching her in this arc? Not her fault. The syndicate aiming for her family through her? Not her fault. These kind of peoples need to reaffirm their beliefs tjat womans are bad and stupid when best waifu Kasen exists. Heck Reika even took boxing classes in this arc to protect herself presumably. Also pretty meta that Tetsuo had to endure stupid people on the internet.