The official Twitter for Kaguya appears to be teasing something related to Season 3. : r/Kaguya_sama

oshi No Ko], Vol. 2 - By Aka Akasaka (paperback) : Target

Aka Akasaka, Renai Daikou Wiki

Kaguya-sama Creator Aka Akasaka's New Manga Renai Daiko Starts

Kaguya-sama Author Aka Akasaka Announces Retirement as Manga

Cute 5 year old tweet from Nishizawa 5mm praising Aka Akasaka (Kaguya Sama, Oshi no ko), today she (as illustrator) starts her first serialized manga together with him (as the writer), called

Oshi no Ko 1st Illustration Art Book Glare Sparkle Japanese Aka Akasaka

The official manga twitter account has reached 280 thousand followers! (ft. Akane icon to celebrate) : r/OshiNoKo

TIL Aka Akasaka, author of Kaguya-sama and Oshi no Ko, wrote the lyrics to some songs off of KikuoMiku0 (Universe Cat Drowning) : r/Kikuo

The official manga twitter account has reached 250 thousand followers! (ft. Aqua icon to celebrate) : r/OshiNoKo

Kaguya-sama: Love is War Creator Aka Akasaka Retires From Drawing New Manga, Will Continue As A Writer