Not even the power of yuri can salvage a morally corrupt manga about cheating. Netsuzou TRap gives you exactly what you want in well drawn girl on girl action, then what you probably don't in rampant netorare with a dash of blatant manipulation.
NTR revolves around a cute girl named Yuma who repeatedly cheats on her boyfriend Takeda with a manipulative best friend, Hotaru. They are definitely a hot pairing, but the fact they hook up behind Takeda's back dulls the excitement considerably. It seems the only purpose of Takeda's character is to be deceived and serve as yet another example of "nice guys finish last". Thankfully he has a friend of his own, Fujiwara, who threatens to expose the secret to everyone.
Yuri is always cause for celebration, but Netsuzou TRap manages to achieve the impossible in making it feel uncomfortable. There is a way to depict NTR in a relatively mature way that speaks to a larger picture but a naive high school romance is not that and the undercurrent of drama committed by hateable characters makes this manga a hard one to enjoy.