Oyasumi Sex

After their parents' divorce, Akira and his younger sister Yui have been living alone together. He stepped up to fill the parental role — cooking, looking after her, keeping things stable. It worked, mostly. But as Yui gets older, Akira starts noticing things he probably shouldn't, and the comfortable sibling dynamic they built starts developing some serious cracks underneath. That internal tension — the guilt, the denial, the line between protector and something else entirely — is really what this 4-episode OVA is sitting with. It doesn't rush past the discomfort. If anything, it leans into it. The animation from New Generation is clean and carries the emotional weight better than you might expect from a hentai OVA, and the character work gives Akira more interiority than the genre usually bothers with. It's not a feel-good story. The premise is uncomfortable by design, and the show knows it. If you've watched something like Aki Sora and wanted the emotional conflict to feel a little more grounded, or if Kiss x Sis left you wanting something with less comedy and more actual tension, this one goes in a different direction. Based on the manga, so the pacing feels considered rather than improvised. Go in knowing what you're signing up for — the incest angle is front and center, and there's no attempt to soften that. But within that framing, it's more thoughtful than most.