Is a Shut-In's Main Quest to Escape the Girls' School?

He was reincarnated into a world where technology and magic coexist. His parents were doing just fine, and all his older brothers and sisters were big shots.

Under the circumstances, he naturally chose to live off his family and play games at home all day.

He'd planned to coast through life like that until one day, his dad suddenly dragged him out into the sunlight.

“They're all dead. You're the family's only hope now!”

Wang Lin: “?”

“For the sake of the family's future, you're going to an all-girls' school!”

Wang Lin: “???”

Only after being forcibly dumped into the school did he realize that it wasn't an all-girls' school at all. It was hell!

“Stay by my side, or I'll sell you. Your choice.”

“I love you most, big brother! I love you even though you're dead! So don't you dare look at other women~”

“Cutie, you wouldn't want anyone finding out you're a man, would you~”

Why is this happening?!