After the Ninth Grade composer died, he merged with the body of a rich second generation otaku in another world. However, what awaited him was not the perfect life of feasting and pleasure seeking with music every night.

Yandere black-bellied goddess elder sister, veteran neuropathy also being the eldest daughter's best friend, pure beauty transforming into the class flower, senior who is a black straight tsundere cold beauty, and members of the girl group who are struggling to change from female supporting role to female lead , gradually submerging his daily life.

"Author? Do you still have a conscience? How can you deceive people? Isn't it good to be a stallion? As a result, Ma Dan, you wrote a novel of pure love, see if I won't strangle you!" The male protagonist cried out in anger.

"You damned siscon, go see a German orthopaedic surgeon!" The author sneered and cruelly knocked the male lead unconscious, dragging him into the depths of darkness...