The 100 Girlfriends Who Really, Really, Really, Really, Really Love You - Chapter 203
The 100 Girlfriends Who Really, Really, Really, Really, Really Love You - Chapter 203

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The 100 Girlfriends Who Really, Really, Really, Really, Really Love You - Ch. 203 - Rentarou's Family's Daily Life (Part Seven) - MangaDex

What a wasted opportunity
It's time for a new addition to the family. Although my predictions have always been off, I'm going to try anyway. Infinite monkeys can generate Shakespeare after all.
Given the theme of 2 - anime season 2, chapter 200, volume 20, girlfriend number 32 - I feel that there's no better time to introduce twins. The harder guess would be their quirk. Maybe they will swap personalities depending on whether it's day or night?