These are the in-universe manga covers for Sweet Today in Kaguya-sama, what are the odds we see this version in Oshi no Ko's anime too? : r/OshiNoKo

First Impressions - Oshi no Ko - Lost in Anime

Oshi No Ko Reference In Kaguya Sama [Ch 276] : r/OshiNoKo

Oshi no Ko – 09 – It's Feeling Official – RABUJOI – An Anime Blog

Oshi no Ko – 05 – My Love With a Star Begins Now – RABUJOI – An

Kaguya-sama Love Is War – The Magic Planet

Oshi no Ko - 03 - Lost in Anime

Kaguya Sama & Oshi No Ko Confirmed To Take Place In Same Universe

Introduction to Oshi no Ko's Team: Maximizing Impact Through An

Oshi no Ko / Characters - TV Tropes