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Season 1 Jan. 05, 2023
- Episode 1: Mahiro's Confusing New Body
- Episode 2: Mahiro's Time of the Month
- Episode 3: Mahiro's Close Encounter
- Episode 4: Mahiro's New Friend
- Episode 5: Mahiro Discovers Adventure and Social Gatherings
- Episode 6: Mahiro Goes Back to Middle School
- Episode 7: Mahiro's Role-Playing Game
- Episode 8: Mahiro's First Girls Sleepover
- Episode 9: Mahiro Rings in the New Year
- Episode 10: Mahiro Ponders Boobs and Identity
- Episode 11: Mahiro Pretties Up
- Episode 12: Mahiro's Future as a Sister
ONIMAI: I’m Now Your Sister! Season 1 Episode 11
Horoscopes are all the rage at school right now, and Mahiro is curious to see what all the fuss about. According to his forecast, an important occasion is on the horizon and he may be in for a surprise or two. But what occasion could it be alluding to?