There Will Be No Problem with My Two-Dimensional

I died, in a dilapidated rental house that no one noticed. Before I died, I made a wish: If possible, I would like to taste all the sweetness in the next life... So, I came to this world, but there was something wrong with this world. In addition to people with different hair colors, there was also my younger sister Mi, who was hanging around me every day, a childhood sweetheart who promised to marry me in the future, and the poor Death God primary school student... Just when I thought my life was going to be "mundane" like this, A late system knocked on the door, and the door to the other world quietly opened... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.