ONIMAI: I'm Now Your Sister!: Season 1
Episodes
Mahiro's Confusing New Body
Jan 5, 2023 · 23 min
We follow Mahiro Oyama, an unemployed good-for-nothing shut-in, who not only hasn't left the house in two years, but is also exceedingly addicted to gross video games. One afternoo
Mahiro's Time of the Month
Jan 12, 2023 · 23 min
As Mahiro stumbles through his new life as a girl, he finds himself gradually beginning to get into the swing of things. Realizing this, however, prompts him to try and reclaim som
Mahiro's Close Encounter
Jan 19, 2023 · 23 min
Mahiro makes a mad dash for the bathroom, but when he opens the door, he finds the facilities are already occupied by a high school girl he's never met. This bold fashionista turns
Mahiro's New Friend
Jan 26, 2023 · 23 min
Mahiro loses to Mihari in a video game, so he has to do the grocery shopping this week as punishment. As an unemployed, good-for-nothing shut-in, the task at hand is daunting, but
Mahiro Discovers Adventure and Social Gatherings
Feb 2, 2023 · 23 min
In a rare turn of events, Mihari wakes up one morning to find Mahiro has gotten up before her. Since the corner store was going to start selling clear files from his favorite anime
Mahiro Goes Back to Middle School
Feb 9, 2023 · 23 min
Momiji shows up at Mahiro's house with her two classmates, Asahi Ohka and Miyo Murosaki, to invite him out for parfaits.
Mahiro's Role-Playing Game
Feb 16, 2023 · 23 min
Just when Mahiro is beginning to get used to middle school life again, finals are upon them. Despite his initial blasé attitude, Mahiro finds himself reluctantly handing in a 80% b
Mahiro's First Girls Sleepover
Feb 23, 2023 · 23 min
It's finally winter break and Mahiro is excited to get into his Winter Vacation Mode. Unbeknownst to him, however, Mihari invites Momiji and the others over for a sleepover. She ho
Mahiro Rings in the New Year
Mar 2, 2023 · 23 min
It's Christmas and Mahiro is shocked to hear his own little sister has a date. Unable to shake his unease, he follows her through the festive hustle and bustle in secret, with Momi
Mahiro Ponders Boobs and Identity
Mar 9, 2023 · 23 min
It's the start of the third semester and winter uniforms are now in effect. For Mahiro and the girls at school, this means braving the cold winter air in mandatory skirts. Who know
Mahiro Pretties Up
Mar 16, 2023 · 23 min
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
Mahiro's Future as a Sister
Mar 23, 2023 · 23 min
Mahiro and the girls take a trip to a Japanese inn over spring break. First they hit the town in their yukata, before heading to the open-air bath to detox. However, things go sout