Possible tags/categories: netorare, schoolgirl uniform, ugly bastard, english translated.
Plot: whole school doing an annual check-up on vagina and penis's quality, then grade them each to match compatible individuals together; a couple had a decent grades, but didn't match each other, an ugly bastard encountered them on their way home, show his grade that matched the girl's; girl immediately dumped childhood friend and jumped on the bastard in the middle of street.
I tried narrowing it down with the tags, but couldn't find it, or maybe missed it somehow. Appreciate if someone has memory of this orz.
Plot: whole school doing an annual check-up on vagina and penis's quality, then grade them each to match compatible individuals together; a couple had a decent grades, but didn't match each other, an ugly bastard encountered them on their way home, show his grade that matched the girl's; girl immediately dumped childhood friend and jumped on the bastard in the middle of street.
I tried narrowing it down with the tags, but couldn't find it, or maybe missed it somehow. Appreciate if someone has memory of this orz.