If I remember correctly the novel is different from the manga (the manga is better). Remember the chapter the brother lied that may was sick and the parents while the parents went to stay some days out? After that he already "confess" to Mai and then they talk to their parents about their relationship after that.
Whoa I did not know that . I guess then I will continue the manga
Can I ask where you still read it btw?
Of course, it was on novel updates I think. Here https://www.novelupdates.com/series/i-reincarnated-as-the-little-sister-of-a-death-game-mangas-murder-mastermind-and-failed/
Thank you
It ended on such a cliffhanger I can't wait . Can someone link me what happens next in novel?