Mahiro and the Visible Undergarmets

Mahiro and the Visible Undergarmets (まひろと見せパン, Mahiro To Misepan) is a special chapter of Onimai: I'm Now Your Sister!. It was originally published in Collected Works Volume 5 which was released on August 31, 2022.

Summary
Mahiro and Mihari discuss unique types of female undergarments.

Plot
Mahiro walks throught the living room with a drink. Mihari notices that Mahiro is wearing bloomers and tells her not to walk around like that. Mahiro is confused and asks if it's fine, as they're kind of made for that. Although Mihari gets Mahiro's point, she points out that it doesn't mean that she should show them to everyone.

Mihari is amazed, as Mahiro was previously emabrassed to wear the spankies she got her. Mahiro notes that she has no issue with these bloomers, and that she just can't roll with such tight underwear as the spankies. Mihari gets it, as bloomers as a bit more like pants. Mahiro admits though that the lacing of the cuffs of the bloomers does bother her, but also admits that they're very cute.

Mihari suggests and alternative and has Mahiro try on a set of petticoat pants. Mahiro smiles and admires how they look on her, admitting that since they feel so much like boxer shorts she's right at home. Mahiro ultimately feels embarrassed though, admitting that they're more like panties at the end of the day.

Mihari, who is having fun with this, moves on to the next item and has Mahiro put on a pannier. Mahiro feels very embarrassed and asks if this is basically just a skirt, to which Mihari confirms that despite everything it is still considered underwear. She explains that it's the kind of underwear that you wear to fluff up the underside of a skirt. Mahiro full understands, realizing that that she's seen these before in an anime. Mihari explains that there's so many frills that nothing's visible underneath so one can be at ease. When Mihari tries to peek to confirm this, Mahiro forces her legs together and tells her to quit it.

Mihari says with joy that more importantly it's flat out cute, though Mahiro admits that she wasn't exactly looking for cuteness here. She also admits that they might be more undependable, and Mihari asks her why. Mahiro points out that when it's all said and done it's not even covered, saying that it's practically like she's wearing a skirt while going no-pan.

Mihari remains silent for a few seconds, then tells Mahiro to stand up for a second. Mahiro does so, despite being confused, only for Mihari to lift up the front of the pannier. As Mahiro squeals in horror, Mihari gets a big smile on her face. She explains to Mahiro that she's supposed to don this kind of underwear over her panties (Mahiro wasn't wearing anything underneath). As Mahiro is shocked and embarssed, she thinks to herself how girl's fashion continues to escape her.

Characters

 * Mahiro Oyama
 * Mihari Oyama

Trivia
总集篇第五卷特别篇