Itoshi no Unlucky Days

Megumi Nishijima is an attentive little brother who helps his divorced sister with her daughter, but he's cursed with the worst luck. In charge of his niece's daycare drop-offs and pickups, he exchanges daily pleasantries with her teacher, Tetta; a ray of sunshine with an adorable smile who is extremely popular with the kids, but just as klutzy as Megumi...! Megumi feels a sense of closeness to Tetta. And then, one day, they have a little "accident" that changes their relationship forever...! (Source: Renta!)