A detective girl dressed in green, and a mysterious boy in black.
What caused him to show his murderous intention?
And what was the reason that made him devote all his strength to protecting her?
She has been trained since childhood, and he is now the ace killer.
The two equally matched people faced each other tit for tat.
The mystery is gradually solved...
What kind of truth will emerge before their eyes?
This account has been found, so I will update articles here in the future. The author is a student, so I will update it from time to time. I hope you all like it.
Concept: tit-for-tat is a specialty