at first i'm like "ig condoms, birth control pills, etc don't exist anymore lmao" but then i realized something
it's fucking Japan guys, the county with its lowest birth rate of 1.16 (as of 2026, idk if that number has changed at all)
so maybe JP doesn't want a good majority of it's manga readers to know about condoms, birth control pills, etc cause yeah JP's birth rate is on a bad decline sadly
but this might be just me being cracked out cause sleep is for the weak and maybe there's some other explanation for this like birth control is banned or something