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Air DateApr 6, 2021
PublishedJun 10, 2026
Duration0m 20s
Views0

Episode Description

Living with sisters Sora, Akane, Kohaku, and Sumi, big brother’s childhood asthma habit of sleeping beside one sister evolved into their parents’ scientific mandate: nightly hugs of 10+ seconds with love, proper scent-sniffing, no breaking away, and daily commitment—the famous “Onami Family Hug 5 Rules” proudly framed in the living room. Following Sora and Kohaku, brother selects the curvaceous, mature-feeling Akane. She wraps her arms around his neck in a full-body, face-to-face embrace, pressing her soft, developed figure against him. The feel of her breasts, hips, and feminine warmth sends his heart pounding; he fights to conceal his excitement, reminding himself she’s his little sister. The hugs grow longer, more heated, each night testing his restraint. Then one evening, after her bath, brother returns to his room early and freezes—Aka ne is alone on his bed, indulging in self-pleasure, moaning softly while thinking of their recent hugs. The sight of her flushed skin, disheveled hair, and unguarded ecstasy shocks him, igniting a rush of conflicting emotions: protectiveness, guilt, and undeniable desire. Akane’s usual confident demeanor hides a deeper yearning, and this accidental discovery promises to push their nightly ritual toward even more intimate, boundary-blurring territory as the experiment continues.

Anime Story

Growing up I was a sickly child and due to this my parents designed an experiment to attempt to help me improve my immunity by hugging my sisters for extended periods each day. Eventually this ended up growing into more than hugging as the closeness to my sisters stirred up feelings from within that...

Main Characters

Onii-chan
Onii-chanVA: You Yotsuba
Sora Onami
Sora OnamiVA: Mako Ayane
Kohaku Onami
Kohaku OnamiVA: Nanako Mamiya
Akane Onami
Akane OnamiVA: Miho Hayashi
Sumi Onami
Sumi OnamiVA: Minaho Matsudaira
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Format: HD Subbed

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