Dive into an unashamedly lewd crossover saga where the heroines of The Quintessential Quintuplets, Bocchi the Rock!, Kaguya-sama, and Eromanga Sensei collide in a chaotic battle for one man's affection.Follow Rin as he builds the ultimate harem through "educational" corruption, using shameless roleplay, public exposure, and intense training to turn pure-hearted girls into depraved deviants.A wild R18 comedy that blurs the lines between love and lust, featuring complex "fake" NTR plots, sisterly rivalries, and a protagonist determined to conquer every heroine in the anime multiverse.Perfect for fans of high-stakes harem building who enjoy seeing arrogant tsunderes broken in, shy introverts turned into exhibitionists, and sisters learning to "share."Novel Tags：R18 Anime Crossover，Massive Harem，Sexual Training & Corruption，Netori / Cuckoldry (Roleplay)，Public & Humiliation PlayAlt titles：（My Girlfriend Has a Cuckold Fetish, So I Corrupted Every Anime Heroine） ~~~ Support me and want to read more chapters: /cw/Briery