Gan Tobasaretanode Nirami Kaeshitara, Aite Wa Koshaku Samadeshita Kore Wa Mazui

Angelica, a former yankee (delinquent) who was reincarnated as a young noble lady in another world. With the strict ladylike education from her older sister, she somehow managed to have her debut at the grand party.

However, she felt a stare from a certain man in the venue and, instinctively, glared back at him. But that man turned out to be the cold-hearted Duke!

Just when she thought she had picked a fight with an unbelievable figure, the Duke was somehow thrilled by Angelica's intense gaze!

This is a fast-paced, mistaken-identity romantic comedy between a former delinquent noble lady and a cold-hearted Duke.