Mahiro's Little Adventure

Mahiro's Little Adventure (まひろと小さな冒険, Mahiro To Chiisana Bōken) is Chapter 14 of Onimai: I'm Now Your Sister. It was originally published on Pixiv on March 31, 2018.

Summary
Mahiro leaves the house voluntarily to pick up some limited edition anime folders.

Plot
One morning, Mihari wakes up at 7:31 AM and gets out of bed. She opens her window and remarks what a nice morning it is. As she heads downstairs, she thinks to herself how good it would be if Mahiro woke up this early once in awhile. She then becomes shocked to see Mahiro, already awake and fully dressed, eating breakfast and saying good morning to her.

Mihari is shocked that Mahiro got up before she did, and checks the emergency kits believing that hell is freezing over. Mahiro tells her that she doesn't need to go that far, and explains that a store is releasing art folders today for an anime series she likes called Magic Armada Love $$\bigstar$$ Master. She further explains that they are popular characters and will sell out quickly, so she's got to be faster. Mahiro further comments on the fact that even though it's a tough job for an "own-home security guard" like herself, some things are worth the risk.

Mihari tries to get a grip on what's happeneing when Mahiro puts on her jacket saying that she is on her way out now. Mihari bursts into tears at this, noting that Mahiro is leaving the house of her own volition and even got up early to do so. Mahiro tells that there is no need for her to cry, claiming that is no big deal. Mihari doesn't buy it though and keeps doing so, even suggesting that they have a big lunch when she comes back. Mahiro just thinks to herself that she is just going to the corner store, while Mihari sends sparks towards Mahiro for luck.

Some time later, Mahiro exits the store, having successfully acquired the folders that she wanted. She sits down on a bench in victory, noting that they were almost out and that she's glad that she came early for them. She notes though that their local store wasn't on the distribution list, so she had to go to the one near the train station instead. She notes that she almost gave up and went home, but stuck it out out of worry of disappointing Mahiri if she did. Mahiro breathes a sigh of relief that there aren't that many people out this early at least, but that she should get home.

Before Mahiro starts on her way, she notices a nearby Arcade that catches her attention. Inside she is amazed by it, and recalls how much it takes her back, as she used to come here all the time when she was in middle school. Since she's there, Mahiro decides to play a game. She decides not to play a fighting game as she doesn't want anyone challenging her.

Mahiro then notices a new Photobooth Corner in the woman's area of the arcade where unattended males are not permitted. Mahiro checks it out, despite not necessarily being into stickers, wondering if they'll kick her out. She gets a sense of this being like a whole new world to her, and makes it almost feel as if she's trespassing. Noticing a Super Cute photobooth, Mahiro decides to try it out as she curious about the inside. Mahiro really gets into it, noting that she can add stickers and use a filter to make her eyes huge. The photo is dispensed and Mahiro cheerfully praises herself for doing it. She then realizes how she just reacted, and gloomfully collapses on the ground wondering what she is doing, and without anyone else nonetheless.

Mahiro then hears a group of girls entering the area and freaks out. She apologizes for being there while running off, much to the girls' confusion.

Mahiro decides to stick to regular games and notices a man playing a rhythm game. She decides to play one that is an arcade version of a mobile rhythm game that she enjoys and begins playing. She soon senses that someone is watching her and wonders why, as she's not doing that great. She additionally freaks out after realizing that it might be because she's a girl. She thinks that this creep, which she hates, might start talking to her and bets that he was waiting to corner a girl playing the game and begins to get scared. The creep taps Mahiro on the shoulder and tries to get her attention. Mahiro gets flustered and turns around apologizing saying that she's not interested.

As it turns out, the so called creep was actually the local Truant Officer who asks Mahiro if she should be in school. He asks for Mahiro's name and class, and Mahiro freaks out while struggling to give an explanation.

Later at home, Mahiro cries about what happened and buries her head in Mihari's lap saying the outside is scary. Mihari comforts Mahiro and thinks about how Mahiro was busted for truancy. She realizes that it is a weekday, and that they didn't think everything through. She is disappointed that Mahiro is getting like this after she finally managed to actually go outside, and decides that she has to find a way to fix this.

Mihari notices the photo sticker in Mahiro's bag and takes a look at it, against Mahiro's wishes. After seeing that Mahiro made herself look like a cat, complete with kitty ears, whiskers, paw prints, and a "meow" word, she overflows with joy over how cute it is. Mahiro just freaks out over her reaction, while Mihari continues to enjoy it.

Characters

 * Mahiro Oyama
 * Mihari Oyama
 * Truant Officer

Trivia

 * First appearance of the Truant Officer.
 * As noted in the chapter, sending sparks towards someone is a common good luck prayer in Japan when the person in question is starting a new adventure.