4.128 out of 5 from 58 votes
Both series are really crazy harems comedies, which are actually funny for a change. One features a demon-girl while the other features an angel-girl (though both are equally messed up) and both series feature a yandere girl. If you liked one you can't go wrong with the other.
If you found either of those manga funny, the other one should suit your taste as well. Both series are crazy harem comedies, but for once they are actually funny, though Fujimura-kun Mates is probably the better one among those two.
Both manga feature a female cupid as one of the main character. In both cases said cupid causes more trouble than actually helps. If you liked that theme in one of them, you might find the other one interesting too.