Not every anime character approaches conflict honorably. In fact, some characters do exactly the opposite by hitting their opponent where it hurts the most - right between the legs.
Sometimes it's an accident - Saitama didn't mean for Sonic to slam junk first into his super powered fist, Sonic was just so fast that Saitama didn't have time to prevent it. At other times, though, it's 100% intentional. Filo did not care what happened to Motoyasu's manhood when she rammed into it claw first. Whether intentional or unintentional, though, these anime characters end the scene in a world of pain.
Which of these anime low blows made you cringe the hardest?
Saitama didn't mean to use his ultra-powered fists on Speed-o'-Sound Sonic's jingle bells - it just sort of happened. Sonic, who was attempting to fight Saitama, ended up accidentally launching himself crotchfirst into Saitama's waiting fist, too fast for the latter to react.
Realizing what happened, Saitama apologizes. Sonic stands there shaking with his legs bowed, promising to defeat Saitama next time. Not so sure about that one, buddy.
All Deku wanted to do was be friendly to the five-year-old kid he encountered at training camp. Kota had other plans, however. An avid hater of heroes, his fist went straight for Deku's nether regions the instant he said a word.
Deku's friend Iida runs over to catch him as he falls, yelling, "You fiend of a child! A punch to the scrotum is unforgivable!"
What does it take to make Goku pass out? Apparently it takes a hit to the nether regions from the super powered Android 13, which is exactly what happens in Dragon Ball Z: Super Android 13! Even being in his Super Saiyan form wasn't enough to dodge a painful blow between the legs, and the transformation fades with Goku's consciousness.
This took place before Goten was concieved, so he presumably recovered from the damage.
After being kidnapped by the Phatom Lord's Master Jose Porla, Lucy isn't content to wait around for somebody else to rescue her. She tells Jose that she needs to use the bathroom, and though he doesn't believe her at first, he eventually relents and gives her a bucket. Despite being a kidnapper, he's still a gentleman, so he turns around so she can do her business in private. The instant his back is turned, she slams her leg right between his legs.
Can't say the Phantom Lord didn't deserve it, but that's still gotta hurt.