 If you liked
Date A Live
|
 ...then you might like
Kimetsu no Yaiba
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They both have a main character who thinks that all their enemies are not evil and try to be friends with them
In demon slayer it’s tanjiro who protects nezuko in spite of being a demon and comes on good terms with more demons
In date a live it is shidou who thinks that the spirits are not bad and tries to make them fall in love with him so he can save them