I'm A Spider, So What? (WN) - Chapter 256: I brought a man home, so let him stay < What the fuck!?

Being given a chance and reincarnated is nice and all, yet why do I have to become that male friend who just watches the protagonist flirting with his harem?---World: Kaguya-sama: Love Is War - Hyouka ----

“Doc, it’s like the game I made is becoming a reality.”“Isn’t that nice? People are under so much pressure at work these days, but you can get away from it all, play the game, and live the life of your dreams.”“But I’m a famous ghost story game designer, I’ve conceived one hundred and twenty-six mu*der cases, portrayed dozens of mu*derers with different personalities, and to find material I’ve watched ninety-five thriller movies, more than four hundred horror comics, and collected more than two thousand urban weird tales. Now they all seem to be true!”“So …… do I look familiar to you?”

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

Poisoned by his wife, betrayed by his best friend, and abandoned by his children—Matthew died broken and alone. But when he wakes up thirty years in the past, trapped in his eighteen-year-old body, everything changes.Now, the halls feel haunted, memories from a future that may never come keep popping into his head, and something strange is growing inside him—something he can’t explain. Sadly, this second chance isn’t a blessing. It comes with a price.But this time, he won’t be the victim. This time, he’s the one in control.