I am looking for a manga that I read two weeks ago and I forgot the title. The female character was playing dare with her friend and she lost and her friend dares her to confess to the main character.

Thanks in advance

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Ten of thousand soldier are worth less then 1 high rank officer on the battlefield

I think there are a lot of manga like that. Do you have more details ? for example is the girl the main girl, is it shounen/shoujo... etc...

well Koaka Head might fit. It happens in the first chapter.