Why did Hikigaya save the anime girls in Sword Story?

After Christmas in 2022, Hachiman Hikigaya of Sobu High School was holding his novice iron sword, and the game system in front of him was floating a death notice of "Exit button disappeared".
Asuna: "Hachiman-kun, is this woman the real-life friend you mentioned?"
Yukino-chan: "Hikigaya-kun, you've violated the Service Club by maintaining intimate relationships with numerous women in this game."
[Yui]: "Xiaoqi's marriage system report... I'm not particularly concerned about it!"
When Asuna, holding Hachiman's hand, ran into Yukino, Yui, Iroha, Shizuka, Haruno, Yumiko, and Jonagiri in a coffee shop, she noticed a small hand suddenly twisting towards her waist. The pained Hachiman looked at the invisible smoke-filled battlefield of love with tears in his eyes: "So - why am I forced to deal with interpersonal relationships now!"
(This article belongs to the world of anime, with the main characters being Sword Art Online and Oregairu. Characters from many anime, such as Steins;Gate and Rascal, will appear later.)