Shinyuu Mob no Ore ni Shujinkou no Imouto ga Horeru Wake ga Nai
Then: Kunugi Kou waged bloody warfare as a hero in another world. Now: He's a perfectly average high—schooler with a perfectly exceptional best friend: Ayase Kaito. Kaito's charming personality and looks that could kill have earned himself the harem of quirky beauties that every protagonist deserves-and Kou is dead-set on supporting him from the shadows as the ultimate wingman extra!
And it's all going great—that is, until a wrench is thrown into the works in the form of another romcom staple: the protagonist's little sister, Ayase Hikari, seems like she might have a thing for him? Now it's up to the world's most "extra" extra to crawl his way back into the obscurity he longs for!
(Source: J-Novel Club)
Then: Kunugi Kou waged bloody warfare as a hero in another world. Now: He's a perfectly average high—schooler with a perfectly exceptional best friend: Ayase Kaito. Kaito's charming personality and looks that could kill have earned himself the harem of quirky beauties that every protagonist deserves-and Kou is dead-set on supporting him from the shadows as the ultimate wingman extra!
And it's all going great—that is, until a wrench is thrown into the works in the form of another romcom staple: the protagonist's little sister, Ayase Hikari, seems like she might have a thing for him? Now it's up to the world's most "extra" extra to crawl his way back into the obscurity he longs for!
(Source: J-Novel Club)
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The Sidekick Never Gets the Girl, Let Alone the Protag's Sister! has 32 chapters across 2 volumes.
As of now, The Sidekick Never Gets the Girl, Let Alone the Protag's Sister! has finished.
The Sidekick Never Gets the Girl, Let Alone the Protag's Sister! was published from May 31, 2019 to November 29, 2019.
The Sidekick Never Gets the Girl, Let Alone the Protag's Sister! is a novel, originally from Japan.