Otonarisan no Gal ga Boku wo Horesasetakute Zenryoku Sugiru

I was raised in a large family without any private space, but finally got permission to live alone upon entering high school. Except it came with a condition: "Don't have inappropriate relationships with the opposite sex." And yet, just after helping out my neighbor and classmate out of a jam—Arisa Amagi, a gal—she's been trying to seduce me in every possible way?! There's no way I can resist this! A romantic comedy with some spiciness and a lot of sweetness begins!

(Source: Overlap, translated)