Imouto no Seiiki


TitleImouto no Seiiki
Original title妹のセイイキ
LengthShort (2 - 10 hours)
1CH Hanhuazu & Lianzhong Hanhuazu
Alternative version
Gakkou no Seiiki
Kanojo no Seiiki
LinksWikipedia (ja), Wikidata, VNStat


This is the second title in feng’s low-price Seiiki series, focusing on younger sister Yukana Nase.

When Youhei was small, he used to visit Akiba often. Even though it was for his younger sister Yukana, he soon got hooked on game centres and that’s how he became friends with his ojou-sama classmate Fuyuka. One day, Fuyuka gifted Yukana with a Christmas trip and the siblings enjoyed their time alone together like a couple. Looking at his younger sister, he realized that still hasn’t saved her from that time.

“You won’t let your younger sister take your virginity even though you’re into Akiba stuff… I hate you, onii-chan!”

[From Hau~ Omochikaeri!]

Hide spoilersShow minor spoilersSpoil me! | Show sexual traits


Main character

Nase Yukana名瀬 ゆかな
MeasurementsHeight: 161cm
HairBrown, Bun, Intake, Sidehair, Twin Tails, V Bangs, Waist Length+
BodyAverage Height, Big Breasts, Pale, Slim, Teen
ClothesBody Ribbon, Clothing with Ribbons, Hair Flower, Hairpin, Kimono, Knee-high Socks, Loafers, Miniskirt, Naked Apron, Naked Ribbon, Off-The-Shoulder Shirt, Pajamas, Ribbon Hair Tie, Sailor School Uniform, Thigh-high Stockings
ItemsMobile Phone
PersonalityAtashi, Brocon, Friendly, Hardworker, Modern Tsundere, Pervert, Smart
RoleDomestic Partner, Full Sister, Ninth Grader, Younger Sister
Engages inCooking, Flirting
Voiced byAkino Hana


Yohei's younger sister. She is a third year middle school student who looks forward to attending high school with her brother next year.

Desperately in love with her brother, Yohei, despite being embarrassed by it. Her love for her brother causes her to act sweet to him sometimes while her embarrassment causes her to become angry at him at other times.

Side characters