You're referring to the anime "Uchi no Otouto, Maji de Dekain Dakedo, Mi ni Konai de Kudasai!" (also known as "My Little Sister Can't Be This Cute")!
"Uchi no Otouto, Maji de Dekain Dakedo, Mi ni Kona?" or more commonly known as "My Little Sister Can't Be This Cute" or simply "Otouto Maji Dekain", is a manga series that has gained attention for its comedic and ecchi elements. The series revolves around the daily life of a high school student and his interactions with his younger sister, who unexpectedly grows and develops in a way that leads to comedic and sometimes risqué situations. uchi no otouto maji de dekain dakedo mi ni kona free
Format: A short series consisting of 2 episodes released in April 2021. You're referring to the anime "Uchi no Otouto,
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