Premieres January 12, 2025. Check out the ANN article for additional information. Synopsis for the first season from AniList:
Rentarou Aijou was rejected 100 times in middle school. He visits a shrine and prays for better luck in high school. The God of Love appears and promises that he’ll soon meet 100 people he’s destined to date. But there’s a catch—once destiny introduces someone to him, the two must happily love each other. If they don’t, they’ll die. What will befall Rentarou and his 100 girlfriends in high school?
I watched the first season, partly because some reviewers pointed out that it depicted the multiple relationships of the protagonist more like an actual polyamorous relationship than a typical harem anime. I would have to agree with this specifically in regard to the first half of the season when there are two or three girls involved with the protagonist. He actually goes out of his way to understand the needs of each partner and diffuse conflicts between the girls.
However, this dynamic breaks down fast when more girls are introduced, and the show rapidly devolves into a typical harem comedy, losing any aspect of realism or wholesomeness. Because of that I have no interest in the second season as I expect it to only get worse.