Why Did the God of Love Choose Me!? VOL 1

Sion Barzahd was your average 28-year-old shut-in NEET. The type who locked themselves away to always play video games, watch anime, read manga, and cut contact from the real world.
He had always dreamed his life would be like an anime, and who wouldn't? Getting the girls you wanted, being strong, and having supernatural powers. It would all be a dream come true. And it is, especially after he wakes up and finds himself in a fantasy RPG-type world filled with monsters and magic!
Having reverted back into the body of a seventeen-year-old, he sets off on a journey to grow stronger, only to be met with strange and unprecedented encounters and interactions. And it's all because he only gets stronger by making girls fall in love with him! And it's made worse by the debauched Affection System and his inability to control his own Charm ability.
Why did the God of Love choose him?