Hi so I’ve forgotten the name of this manga that I love and it would be super helpful if someone could help me find it!
The female protagonists dad marries again and they join families. So now the main character has a younger brother. The parents go on a honeymoon or something and leave the kids alone. The innocent younger brother turns out to be a major pervert and starts feeling her up. They end up in a relationship but the girls grandma comes to visit, notices the boys intentions and stays at the house as a cockblock. Also the guys real dad is super dodgy and is super creepy to the main girl, but apparently it was a test for his son?

Does anyone know the name of this manga? It has somewhat older style drawings for shoujo manga. The girl has short curly blonde hair and the boy has dark hair and a moody face. The girls name is something cute like Haru or Momo or something like that.

Please help I’m desperate to rediscover this manga series!!

Yoru Made Matenai. - I believe this is what you’re looking for

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Nulla in mundo pax sincera
"Always go too far, because that's where you'll find the truth." - Albert Camus

Thank you so much it is the right one! Your the best! 😀