On X's social networks (Twitter) the profile Sugoi LITE, specialist in anime , states that the visual novel “9-Nine- Kokonotsu Kokonoka Kokonoiro” will gain its anime adaptation.
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Therefore, the news is treated only as a rumor, no other official information is available on the internet.
Synopsis 9-Nine-:
A city that, aside from being an academic center, has no special characteristics. There were some attempts at revitalization to attract tourists, but they were unsuccessful. However, for an unexpected reason, the city began to attract people's attention. Niimi Kakeru is a boy who, despite his hasty attitude, has a strong sense of responsibility. He seems like an ordinary student with a kind personality, but after a sacred treasure from a certain temple was damaged, an unusual power awakened in some young people, including himself. He was supposed to be an ordinary student living in an ordinary city, but... Now the young people are involved in this mysterious destiny.
Finally, the game 9-Nine- Kokonotsu Kokonoka Kokonoiro was released in 2017 in Japan for Windows by Palette , the following year it gained a version for Android and then for Nintendo Switch. In Brazil, 9-Nine- (Episode 1) arrived in Portuguese through the Eromangá website.
Source: Sugoi LITE