From MangaHelpers:

Amaguri Amami is like the world's granddaughter, mostly on account of having a perfect grandkid's face. Almost all of the elderly people she sees feel compelled to give her sweets and dote on her, and her charm extends to many others as well. Ikako-sensei, her teacher at the school she transfers into, takes an instant dislike to her. Ikako has a habit of charming men with sex acts, and she is shocked and dismayed that Amami can win over her staunchest allies simply by looking cute and childish. On top of that, Amami comes late to class every day, and she started off the first day by knocking out Ikako with a pressure point attack. Will Amami's cute brattiness and fondness for sweets truly win her the world? [tethysdust]