(A crossover novel primarily based on Chainsaw Man, now also featuring Mieruko-chan.)
You wake up transmigrated into a world where humans and devils coexist, and your body has reverted to that of a child. How can you survive all alone?
Luckily, you have her. Her long, pale pink hair cascades down like a waterfall, her almond-shaped eyes are as blue as the sea, and a handsome smile blooms across her refined face like a rose. Your big sister smiles gently and tells you not to be afraid. She'll take care of everything.
But what if your big sister falls apart, too?
Her once-neatly combed hair is now a tangled mess, dark circles stand out on her pale face, and her handsome smile has turned into a silly, childish grin. Your big sister now looks like a little schoolgirl who hasn't quite grown out of her childishness. You prop your chin in your hand as you watch her, and resolve to hold this fragile family together.
PS: Cover image will be removed upon request.