hoohttp://www.dlsite.com/girls/work/=/product_id/RJ395098.html

The artist said this doujin is a parody of Oyasumi Sex series, a different love story between brother and sister.

Character Introduction

Aki(アキ,the brother. Age:85)

Aki was transformed into a vampire when he's still a boy. After that he had no choice but to flee and seek shelter in the forest with his mother. He only consumes blood and nectar as daily food. Being weak against sunshine, he always sleeps in daytime and wakes up at dusk.

Yura(ユラ,the sister. Age:80)

Yura was born as a hybrid of half human and half vampire, for her mother was bitten by vampire during pregnancy. Although appears to be ordinary human, she inherited the power of fast self-healing and extended life. However, she is unable to bear children and knows little about having sex.

三上，实妹的神！

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@rBO0R57m

而且这个妹还是怎么干都不会怀孕的......

Base +14, zhl2019 +6, scf123 +15, the east rabbit +3, 时差党 +13, Jk1027 +3, BlueThree +8

转向女性向了？

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Wait she was a virgin at the beginning clearly, so how does she know she is unable to bear children? Did her mother tell her about that or did she only find out later after having sex with her brother?

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@EHCASUAL

The story so far doesn't tell how Yura knows about her inability. It's only described in Character Introduction (page 3) as a character status.

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@EHCASUAL

Perhaps she doesn`t get any period for women. hence the inability to breed.

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三上是不是只会画这一个脸

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说是晚安sex的兄妹转世我都信233

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@qwu5 作者说这确实是晚安sex的恶搞（？）作品（

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@pickychiken 233原来如此

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这对兄妹可真会玩

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