MTL - My Dear, She is Always Unmotivated - Chapter 31 who did it

I, Zhang San, am absolutely a good person!I swear by the eight generations of my ancestors!What!? My ancestral grave just exploded!?

A generation after the last Great War, the world prospers while leaving the BloodStar Empire sequestered and alone. However, things begin to change as the next BloodStar heir aims to make new allies in a world more willing to forgive her empire’s tragic past of violence. The beautiful and young Xenia BloodStar is a world-class beauty, a calculating politician, and an immensely powerful ki user. In an established world ruled by Master Families, will the Princess BloodStar use her beauty and power to elevate her empire on the world stage? Or will she follow in her mother’s footsteps of violence and war?Release schedule: At least one new chapter every Sunday at 9:00 AM CST. Thanks for reading :)

With Ye Chen, who inherited the devil, reborn the Phoenix continent, invincible, there will be any unknown secrets waiting to be solved here.
   The “City Revival Master” has been completed, and my brothers support it ~~

- Description from ~

Su-jin is a high school student whose life is filled with loneliness. Weighed down by school bullying, personal struggles, and isolation, she finds herself growing weary of everything. At that moment, a mysterious shadow enters her life—a man she only sees in her dreams, through his face remains hidden. Surprisingly, his influence extends beyond her dreams, shaping her into a stronger, braver, and happiest person.As time passes, Su-jin finds herself drawn to him, yet his presence brings more than just emotions—it leads her to extraordinary friendships and unexpected adventures.Among them is Yeong-ae, a skilled spy who enrolls in Su-jin's school to investigate the mysterious death of a girl named Ha-na. And then there is Jung-hee, a young detective who begins working as an undercover high school student on a major case. Along the way, she unexpectedly meets Su-jin, which gradually develops into a deep friendship.Day by day, Su-jin's life becomes like an adventure book; each page of which becomes an unfolding adventure filled with excitement, romance, secrets, challenges, and discoveries. But in the midst of this mystery, will she ever find the invisible man who stole her heart?