The Tragedy Of A Fighter Wife Who Lose~ Yuna Mitake !free! 🎁 Editor's Choice

It seems you're looking for a narrative or character guide on (御竹 ユナ) from the Japanese adult visual novel / anime-style story "The Tragedy of a Fighter Wife Who Lost..." (likely part of the Kachikano or Wife series by Atelier Sakura / Team NTR ).