After transmigrating into the world of Demon Slayer, Ruan Shuping, who has lost all her memories and has an emotional disorder, is adopted by kind-hearted parents and becomes Douma's older sister.
She joins the Demon Slayer Corps and grips her Nichirin Blade for one purpose alone: to protect the last glimmer of light remaining in her life.
I put myself in the game, and with one move, I outplay fate.
At the most painful moment of my life, I met that man. He listened to everything I had to say with a smile, then said in the gentlest voice, "Life is precious. You have to cherish it."
He became the only light in my short life. This time, no matter what it costs, I will hold on to that light.
Happy ending for everyone (most characters get a satisfying ending, but I just can't keep track of every minor character, so a few might get overlooked...).
No CP, though there's a slight reader-insert romance angle... Friendly to multishippers, but less so if you only ship Douma and Kotoha, Douma and Shinobu, or Douma and Kokushibo, or if you're only here for reader-insert romance.
Just by looking at the introduction and the number of words, you can tell that it is definitely not ordinary, and you must try the saltiness.