Mushoku Tensei: Jobless Reincarnation, Vol. 1

I really like a lot of things about this series, enough that I tracked down fan translations for all the rest of the volumes, but 2 things made me stop reading. The first is the main character's constant sexual harassment of almost every single female he meets. The playful pervert is pretty common in Japanese stories like this, and it mostly doesn't bother me, but this didn't feel playful. The other, the thing that really made me stop reading, was the infidelity that kept popping up with several of the characters. Some of it was just because the character couldn't keep it in their pants, even though they were in a supposedly happy relationship. Some of it was from a ridiculous plot device. Without spoilers, it eventually went too far and ruined my enjoyment of the characters and story.