His step-sister is an erotic manga artist. Reika usually relies on her step-brother, Yuu, for support while she works hard on her manga manuscripts, but once she finishes a manuscript, she can’t control her desires and transforms into a total slut! With her body aroused from drawing too many erotic scenes, she gives in to her instincts, unleashes her desires, and pounces on Yuu without hesitation! Today, just like every other day, she’s determined to milk him dry, shoving herself into every orifice she can find! There’s no resisting her step-sister’s relentless sexual assault…!
 
(Source: Lune-soft, translated and edited)

1-4. Heart Mark Oome. (はーとまーく多め。); Comic Market 95, 96, 100, Kakioroshi. 
5. Lilim's (りりむす); Comic Market 89 
6. Lilim's Plus (りりむすぷらす); Comic Market 90 
7. Lilim's Kiss (りりむすきっす); Comic Market 92 
8. Fuyu no Hi (ふゆのひ); Lilim's Kakioroshi 
9. Itoshi no Onii-sama (愛しのお兄様); Comic Market 91

Reika is a mangaka who channels her horniness into her work. But when she finally meets her deadlines, she relies on her brother to let the steam off...
 
(Source: Irodori Comics) 
Notes: 
• Released at Comic Market 95, 96, 100. 
• A live-action AV adaptation (NIMA-047) was released on January 17th, 2025

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