Momose, a 26-year-old office worker, recently changed jobs after being harassed by his former boss. He is concerned that his new boss will also use power harassment to make his life miserable. Momose tries to hide his concern about facing a similar situation with his new boss, Shirasaki. To Momose's surprise, however, Shirasaki's inherent airheadedness immediately alleviates all of his concerns, giving him a sense of relief.

Konoha Akisato is an illustrator who loves beautiful girls and bishoujo games. She works at a video game studio and aspires to become a super famous illustrator. However, reality did not work out as well as she had hoped. In the present, where mobile games are all the rage, Konoha spent her days as a sub-illustrator just coloring the back of background characters. One day, after some happenings, Konoha got her hand on a masterpiece of a bishoujo game from the owner of a game shop. Thinking back to the golden age of bishoujo games, Konoha opened the package of "Dokyusei" and was suddenly enveloped by a dazzling light, transferring her to the past! She arrived in the year 1992—The golden age of bishoujo games! Now joining a company named "Alcoholsoft," will Konoha be able to think, draw, and create her beautiful girls?! A story about a girl brought to you by her overwhelming love for beautiful girls—"Now, let's start!"

Kaoru Nagase died unexpectedly while walking home from her office job one night, and she suddenly finds herself in front of a man dressed in white. The man introduces himself as God and apologizes for his mistake that resulted in her untimely demise, vowing to make it up to Kaoru by reincarnating her into another world. The next world's goddess, Celestine, reforms Kaoru's body and gives her all the concessions she asks for: the body she had when she was 15, the ability to make potions with effects of her choice, and a box with infinite storage space, to name a few. But soon, Kaoru realizes that, despite being told otherwise, this new medieval world doesn't have much in the way of magic, causing her potions to be highly sought after by greedy nobles. However, by using knowledge from her previous life, she just might find a way to survive in this world using her potions.

All eyes are on Toukai Teiou as she takes on the Japanese Derby, ready to gallop in Symboli Rudolf's footsteps and become an undefeated Triple Crown Horse Girl. The stands are full. The track is set. It's time to see which horse girl fortune favors!