Don't Order Me, Ouji. ~Corrupted By My Black-Hearted Dog-Like Kouhai~

"I was only accommodating your request, though, Senpai,"
said Ouji-kun, the genius who could do anything flawlessly and popular with other people.

The protagonist tries her best to compete with her rival to get the best sales results. However, she cannot defeat him no matter what, so she acts coldly toward him when he wants to get closer to her.

One day, the protagonist drinks to drown her sorrows during a drinking party after work and accidentally exposes her hidden desire to the worst person possible...

"I see... That's how it is, huh? Senpai."

Once she returns to her senses, Ouji-kun is in front of her, but is there something off about him?

Obsession + Junior at work + "Training" through lots of love and pleasure

The protagonist's longest night of her life with her wholly changed kouhai has only just begun.

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Types of Sexual Plays Featured in This Work:

Cunnilingus
Fellatio
Vaginal Fingering
Cervix Teasing
Creampie
Squirting
Successive Orgasms
Prone Bone Position
Reverse Sitting Position
Cross section (seX-ray) views

* There are some expressions of coerciveness.
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57 pages total
(including 53 main pages + front cover + 2 pages of character setting + 1 admin page)