Kaitou Tenshi Twin Angel

Both anime portray the psychological side of magical girls and give us the idea that being a magical girl isn't always fun'n games. Having the power of a magical girl doesn't make you unbreakable nor unbeatable. There is always a dark side to everything. 

Both seem like cutesy and fun shows at first, but then turn into something darker, exploring the psychological hardship of being a magical girl.  

Both are magical girl series that initally start off as being very sweet and cutesy uwu stuff but later on as time goes by things start to go pretty dark and is not afraid to show the sad realities of being a magical girl as well too.  

Both are not your average magical girl show, as they portray the dark side of that it really means to be a 'hero of justice'. Darkness exists because happiness exists. 

While Twin Angel is more action-oriented than Uta Kata, they both start out lighthearted and cutesy, but then take a darker turn, exploring the psychological hardship of becoming a magical girl. 

Both shows start off as pretty cheerful and optimistic, but as time goes by things start to be more somber and downbeat and the darker side of being a magical girl. 

Main chara are kawaii girls who transform into heros. In both there's a tuxedo man who saves girls when it's nessesary. Moreover, they both are related to school