Anime Crossover: Why are all the characters who like me female protagonists?

Life takes an absurd turn for ordinary college student Hyuga Gen when his world unexpectedly collides with the universes of legendary anime heroines. Between casual neighborhood encounters with iconic figures like Yumiko and startling revelations about his own hidden lineage as the heir to an elite anti-demon ninja legacy, Gen finds himself surrounded by powerful female protagonists who seem dangerously fond of him. Opting for a life of cautious survival rather than reckless heroism, Gen decides to leverage his charm, his newfound protection, and forbidden cultivation manuals to navigate a thrilling, harem-infused reality where staying alive is half the battle.