The official website for the AnimeJapan convention lists in its description for the TONIKAWA: Over The Moon For You event that the second season of the anime will premiere in April 2023. Crunchyroll had previously announced that it will simulcast the second season in North America, Central America, South America, Europe, Africa, Oceania, the Middle East, and CIS.
Crunchyroll describes the story of TONIKAWA: Over The Moon For You as:
Nasa Yuzaki falls in love at first sight after an encounter with the mysterious Tsukasa. When Nasa earnestly confesses his feelings, she replies, “I’ll date you, but only if we’re married.” Nasa and Tsukasa’s cute and precious newlywed life of love is about to begin.
The first season of TONIKAWA: Over The Moon For You premiered in October 2020 and aired for 12 episodes. Crunchyroll simulcast the series as it aired, and also streamed an English dub for the anime as well as dubs in Spanish, Portuguese, French, and German.