Germany has done a pretty good job of owning up to its past and making sure history's lessons aren't forgotten but that's not the case in a lot of places such as Japan which downplays its role in WWII.
I don't think that is how I would characterize the (west) German actions after the war, the upholding of Third Reich civil service and court appointments and Nuremberg Law convictions of LGBT people. This censorship of symbols and history in media and faux-remorse by the CDU always seemed more a shield against retrospection for the NAZI officers that wormed their way into NATO high command and a weapon against the most tepid support for Palestinians in this time that Israel foments such similar crimes. The state corporations that perpetrated the holocaust; IBM, Bayer, CocaCola, BMW, Deutschbank, AIG, Seimens, Hugo Boss, etc are not barred from operating in Germany, their assets were not stripped to the fillaments for reparation, the lucre ripped from the mouths of victims at scale still rots in Swiss bank accounts not relinquished to the 'international community'. This refusal to engage in that history in anything but hushed tones serves only now to protect the continuum of government that is unbroken since the faltering failure of denazification and allow the same government to control the narrative and excise those they still see as untermench; Roma, LGBT people, immigrant workers, communists; from the rolls of victims of atrocity. The lesbian rape manga at hand is a good story; it's compelling, it's titillating, it's well researched and the author's musings on the abject stupidity of the Reich's designs (and further actions) are a lot more honest than can be seen in most American blockbusters that require the projection of superhuman competence on the enemy that they might look good by its defeat; it strays from the (fascist if we are to believe Adorno) tendency cultivated by that censorship to create more relatable, simplistic escapist works of clear morals and ethical protagonists.