On the day of my car accident, something strange popped into my head!!! Yukinoshita Yukino: Hikigaya-san, stop what you're doing or I'll call the police. Yuigahama Yui: Hikigaya, you're actually doing this to me!!! Kato Megumi: Hachiman-kun, this isn't okay~ Kasumigaoka Utaha: Junior, you can't do that. Sawamura Spencer Eriri: I treat you like a geek, and you're trying to do all this to me... Aoyama Nanami: Impure relationships with the opposite sex, no! Shiina Mashiro: Hachiman, you're my first... Hikigaya Hachiman: It's all the system's fault!!!

Reborn in Hokkaido, he is a wind band advisor and instructor.

As an underdog recent graduate, Kitahara Hakuba is in charge of the system and is full of confidence to make achievements here.

At first, he didn't care about the atmosphere in the band, as adolescent girls always have some sweet little thoughts.

But as the music festival came to a 'perfect' end, the atmosphere within the wind band became increasingly unsettled.

"Can you be my friend for life?"

"Please! If I don't have you to help me, Wadasi~~!"

"I've never been happy playing the oboe."

"Because the moonlit night looks like it's about to break down."

"You are a person who only thinks about yourself."

"The first trumpet is trying too hard."

"Moonlight, move."

"this...

Originally a modern Japanese social person, he was reincarnated into the world of "female-oriented game" of swords and magic and became a character named Leon. He felt desperate for the world of female supremination and male inferiority.

In this world, men are like livestock responsible for providing the necessities of women's lives. The only exceptions are probably the prince who is the target of the game strategy, and the male army around him.

For this arrogant and unreasonable situation, Leon has a weapon - he was coerced by his arrogant sister in his previous life, and he had to capture the relevant knowledge accumulated during this game.

Due to fate, Leon had to use this knowledge to stand up against many wayward women and men.