Darling in the Franxx

Darling in the Franxx, a science fiction mecha romance anime, originally aired in 2018.
While there's no official confirmation of a second season, fans continue to hope for its return due to the unresolved plot points and the popularity of the characters.
Some news articles discuss the possibility of a season 2, mentioning that the director has hinted at needing to remain silent about the future of the series, fueling speculation. However, it's also worth noting that the anime ended the story arc of the main characters and the manga adaptation has already diverged from the anime's storyline.