Tsuna and Allison have known each other since they were kids and they are best friends, Allison lives with Tsuna and Nana since her husband brought her to them since she was 5 years old. Unlike Tsuna his best friend Allison knows about the mafia and she knows that when she is old enough she will have to marry someone and her brother will have to approve and of course she knows how to defend herself thanks to her godfather. Sorry I'm not good at Descriptions but I tried.
118 parts