For years, Naruto , Bleach , and One Piece ruled the world. While One Piece is still going strong, a new generation of "Shonen" (media aimed at young teens) has taken the throne.
A spy, an assassin, and a telepathic child all end up in a fake marriage for their own secret reasons. None of them (except the kid) know the others' secrets.
Author Tatsuki Fujimoto breaks every rule in the book. It’s chaotic, emotional, and feels more like an indie film than a traditional manga. 3. Slice of Life & "Comfort" Series
Try Monster or The Promised Neverland .