>>2453673I'm not going to bother going there, but can provide an explanation. I've lived in Japan for a decade and the whole concept of "consensual love" isn't really the same as in a Western concept. It's fairly new here, and it's still being adapted. The manga shown is an older manga, and an older idea of courtship.
When flirting, traditionally the one courting is supposed to be as pathetic as possible. It's hard to really put into English, but when a man tries to court a woman, he'll tell her how lowly he is or other short-comings, and she'll take "pity" on him and allow him to have sex. I say sex, because that's generally where dating goes - sex happens quick, and usually people don't go on dates anymore after children. It goes the same the other way too. It's considered "cute".
For both sexes, it's considered unbecoming to outright show yourself or your affections, and it's often arranged through "accidents" from friends, or each other, and how they react. If they're shy and coy, it's a good indicator of interest to the other party. If they're angry, they'll likely just leave or yell at you - not interested. Accidents isn't usually outright stripping each other (although rarely, it does happen but is more modest, such as lifting a skirt). These accidents are pushing them together, assigning tasks together, leaving them alone in a room together, ect. This is why the confession in manga is such a big deal - it's actually pretty rare and everything is a big cat and mouse game.
Japanese don't really view nudity in the same context Westerners do. Westerners, in nearly all contexts, nudity is shameful. For close family and friends of the same gender, you'll see each other nude fairly often. Changing, getting out of the shower, visiting a public bath, ect.
I've dated a few Japanese women and they'll spend an hour or so in the morning naked or in close to nothing as they get ready and think nothing of it. Friends or (close) family too.
