USUKAWA ICHIMAI MUKOUGA WA: KONYAKU HAKI SARETA FUTATABIME NO JINSEI, AYAKASHI WO MIRU ME GA SAIKYOU GUNJIN WO MICHIBIKU

The protagonist, a young girl, has been ostracized because of her eyes that can see monstrous figures. Her deceased grandfather had told her that this power would one day be useful, but nothing good ever came of it, and she lost her life and was reincarnated in another world. Born as Satsuki, the eldest daughter of a noble family, she is branded as incompetent because she has no magical powers, and is treated like a servant. Moreover, just like in her previous life, she can see monstrous figures that are invisible to those around her. Her fate begins to change when she meets Ichii, a soldier who notices Satsuki's ability to see these monstrous figures. (Source: Natalie, translated) — Description from AniList community (anilist.co).