Suffering horrendous bullying in school led to Kani Nayuta being incredibly shy and quiet, with her eventually dropping out. After reading a light novel written by the hard siscon Hashima Itsuki gave her courage, she become a light novel author on her own. She found huge success as a writer where she eventually met him and her feelings of admiration turned to love, and lust. Nayuta takes every opportunity she can to tempt Itsuki into sleeping with her, touching her, or doing anything to her. One of the greatest mysteries of Imouto sae Ireba Ii is how these two aren’t an item yet!

Minamoto Chizuru is a fox spirit yokai that has found herself enamored with everything to do with Oyamada Kouta. They don’t match, don’t share common interests, or even belong to the same class with Chizuru being his senpai. However, nothing stops this hidden monster girl from thrusting herself upon this shy boy at every opportunity. Sexual harassment is an understatement as this girl goes to extreme lengths like creating a pocket dimension just to assault Kouta at her leisure. If it wasn’t for her love rival, wolf girl Ezomori Nozomu, Chizuru would have probably succeeded by this point.

A lamia (half snake, half woman) that has been sent to Japan on an exchange program from another world, Miia finds herself falling in love at first sight with her host Kurusu Kimihito. Poor “Darling” is going to wish that he’d been informed of snake mating rituals, as they are a little more aggressive than anything humans could survive. He’s been assaulted in his own bed, only to wake up and find himself wrapped in 20ft of massive snake coils, and nearly being killed by her affections. Miia is slightly apologetic, but it doesn’t stop her unending pursuit of skinship. Unfortunately for Miia, 5 other equally overbearing monster girls are gunning for Darling as well.

For anyone who has seen all 3 seasons of the game world isekai Overlord, you might be confused about how Albedo could be second to anyone on a list like this. This beautiful monster girl may have had her programming tampered with by Momonga before the events began, but something must have already been lying dormant inside of her for her to act so crazy in love with the Supreme One. Overseer of all Ainz’s guardians, she works closely with him, all to her liking. She has a Momonga hug pillow, has snuck into his bed to wrap him in her scent, and has even invited him to take her in front of everyone in the throne room. There’s no end to this girl’s thirst!

There is probably no thirstier character in all of entertainment than Anna-senpai. Originally a smart, composed student council president who took public morals and censorship seriously, she flipped on a dime with a single kiss. When Okuma Tanukichi accidentally kissed her protecting her from a stalker, she became obsessed with her pursuit of “pure love” with him. In her mind, any debauchery that her heart could lead her to was pure and wholesome.

Like many others in Shimoneta, she was born into a society that has hidden all lewdness in an attempt to keep youth pure. That didn’t work, because the places her mind goes to are straight out of any hentai that she likely has never even read or heard of. She puts “love nectar” into Okuma’s food and drink, rubs herself on his crotch to feel more love, and has outright drenched the poor boy in only God knows what else. Her thirst knows no limits and has put her rightly at the top of our list.