This Little Boy Was Swept Away by a Mature Older Sister

[Matriarchal society + yandere + jealousy + shota + a delicate, frail male lead who's easy to take advantage of.] Jiang Ran transmigrated into a matriarchal world. This world was the complete opposite of the one Jiang Ran had lived in before. Men stayed at home while women worked outside, and everything was the opposite of life on Blue Star. Boys, be careful when you're out and about, or a mature, beautiful woman might snatch you away. Just like Jiang Ran right now: standing in front of him was a curvy, stunningly beautiful woman. “It's raining so hard, little brother. Why are you out here alone?” “I get it. You must be a poor little thing with nowhere to go. Why don't you come to my place?” “My cat can do backflips, you know.”