Can I Get a Happy Ending with All These Secret Identities?

Chi Mian is an ordinary student from China, a devoted fan of a certain battle royale game and an avid role-player. After transmigrating, he gets a golden finger: his own original secret identities. The only problem is the main quest: "Give every secret identity a truly hopeful ending."

Looking at the first secret identity, freshly unsealed and fused with his own body, Chi Mian reads the profile:

Ultimate Trader, Suijingfang, a patient with congenital insensitivity to pain. Because of his condition and appearance, his parents once used him as an outlet for violent customers to vent their negative emotions, making him cater to them in exchange for a huge fortune. An intuitive person. Ability: "Amber," which can slow the passage of time for objects.

Chi Mian: :) Sure. I'll complete the mission.

Secret Identity One: Suijingfang, [Ultimate Trader]. A child not yet ten years old, regarded by his subordinates as being on a par with the girl named Alice at the Boss's side. The best candidate for the Immortal Legion Project, aside from the "Angel of Death." Like him, Suijingfang is bewildered by death. They are both "dolls" whose fates were once out of their own hands, and they know everything about each other's pasts. He is someone Dazai Osamu has openly said he dislikes.

"Sleeping pills... Two tablets... Excuse me, do you have any sleeping pills? I haven't been sleeping very well lately."

Secret Identity Two: Sakaguchi Anzhi, [Ultimate Office Worker]. The twelve-year-old daughter of the Sakaguchi family, who ran away from home. Perhaps she wanted to follow in the footsteps of her older brother, who had left home, or perhaps she wanted to prove that she deserved to be free. Whatever the reason, she arrived in Yokohama with a clear purpose and joined the Port xxx.

"I don't have an ability." The black-haired, green-eyed girl, a mole beneath her right eye, looked up and indifferently caught the hand resting on her shoulder. "But please don't underestimate the clerical staff... You're interrupting my overtime."

Secret Identity Three: Sakai Hajime, [Ultimate Lie Detector]. The child of one of Kogoro Mouri's late former colleagues. He has curly black hair and dark green eyes, and his father was once an undercover agent in the Black Organization.

"It's just a surprise." His face was free of gloom, brimming with the vitality unique to young people. He restrained the man with perfect precision, without a moment's hesitation. "Hey, you're lying, aren't you?"

Secret Identity Four: Shiratori Towaka, [Ultimate Victim]. Though whether that's her real name is anyone's guess. A girl who looks very much like the Demon Fyodor, she often appears as a victim in various cases.

"Sir... Could you let go of me first? I need to hurry and find the next culprit." Looking utterly innocent, she spoke to Dazai Osamu.

Secret Identity Five: Ii Hatsumi, [Ultimate Unluckiness]. An ordinary person, except that lots of unfortunate things happen to her. (Perhaps it should also be mentioned that the people around her are all rather unusual?)

Theme: Embrace hope and welcome the future