What If Kuromu Transmigrated to the Superhero World [Western Crossover]

The Vongola have two Mist Guardians, Mukuro and Chrome. Mukuro is eccentric and unpredictable, while Chrome is sweet and gentle.

Mukuro always gives Tsuna a headache, but Chrome's presence makes up for it.

Chrome completes her missions on time, writes her reports diligently, never picks fights, willingly acts as Mukuro's intermediary to communicate and mediate on his behalf, and sweetly says, "You've worked hard, Boss."

She's practically an angel.

Tsuna often feels lucky that Chrome exists in this world.

Until one day, a subordinate rushes into his office in a panic.

"Tenth Boss, this is terrible! Lady Chrome was hit by the Ten-Year Bazooka and sent to another world. Lord Mukuro is furious and is going to tear apart the Engineering Department and Lambo!"

Tsuna: "..."

The Ten-Year Bazooka swaps the person it hits with their future self for five minutes.

Chrome waited through countless five-minute intervals in the other world, and when nothing changed, she finally realized something was wrong.

A bat's shadow swept over the skies above Gotham. A news alert popped up on her phone: a red-and-gold armored hero battling robbers.

She could feel the soul contract between herself and Mukuro, faint as it was, and could not suppress her fear.

"Hey, you don't look so good." Robin crouched on the terrace above her.

"Where is this?" Chrome asked.

"Gotham," Robin replied. "Need information about temporary housing for people in need? It's sponsored by Wayne Enterprises."

Later on,

the superheroes gained a formidable illusionist ally.

Chrome was wonderful in every way, except that she was always talking about someone: Rokudo Mukuro.

"Who is Lord Mukuro?" Chrome said with a smile. "He's the most important person in my life."

Theme: Loving someone is also a journey of finding yourself.