Title: 無敵の未来大作戦 Muteki no Mirai Daisakusen
Creator: 黒崎冬子 Kurosaki Fuyuko
Books: 3 volumes, Nov 2020 - Aug 2021, Beam Comix, Kadokawa
A love comedy with art that's a kind of glorious, kitsch throwback to the 70s, and the chaotic energy of the outlandish gags is also retro, but it's set in the Reiwa era and there's a really interesting and funny collision of modern attitudes and old tropes. I love it.
The premise is that Japan's Health and Welfare minister had decided that if financial concerns are contributing to Japan's low birthrate the answer is to declare some superrich people to be "saints" who are to marry lots of people and have a lot of children. The male lead of this series, Iida Kudaku, is a high school boy newly chosen as one such saint. The female lead, Akira Eiko, is one of the girls who hopes to marry Kudaku, so that she can make life easy for her poor mother. They become friends after Eiko helps to corral some marauding rabbits that had been angered by Kudaku eating one of their carrots.
The story proceeds in short arcs, typically about a new larger than life character who is a potential marriage partner for Kudaku, but they end up either realizing they have a different route to happiness or Kudaku rejects their confession.
The ending is great, but naturally a spoiler
Kudaku has known all along that he's got no interest in romance, whereas Eiko realizes toward the end of the series. By that stage a wedding for them has been organized. The manga ends on the day of the event with the 2 of them smashing their way into the church, ready to tell their family and friends their truth instead of getting married.