Synopsis:
As a proud member of the bomb disposal squad who died in the line of duty,
22-year-old Hagiwara had thought that after being blown up, he'd ascend to heaven and see his deceased friend.
When he opened his eyes, he found himself in a strange space and signed a contract with a System.
He also agreed to help the System complete missions in various worlds.
In exchange, once all the missions were complete, the System would revive him in his original world.
And so, in order to go home, Hagiwara set off on a long journey of missions.
World One: Save the gloomy, violent aristocrat of Heian-kyo.
His first world was Heian-kyo, where he became a servant in an aristocratic household.
Because he was sweet-talking, kindhearted, and quick on his feet, he was assigned to the household's youngest son, Kibutsuji Muzan.
Seeing the other servants look at him as if he were being sent to his death, Hagiwara's smile stiffened a little.
Was he really that scary?
Wow, he really was scary.
Hagiwara put on a frightened expression.
He felt like one wrong word would get him dragged out and killed.
Help me, Matsuda~!
World Two: Help a boy from a seafood family reach the top!
A new teacher arrived in Namimori. His classes were funny, he was outgoing, and everyone liked him.
Tsuna liked him, too, because the teacher didn't look down on him for being a good-for-nothing. Instead, he patiently tutored him.
Even his classmates started treating him more kindly.
That made him hate school a little less. He no longer went only because Kyoko-chan was there.
But he never expected a little baby to suddenly show up at his house one day and tell him:
Become the Tenth Vongola Boss!
Hagiwara arrived in Namimori and found the locals simple and friendly. The place soothed the wounds he'd suffered in the previous world.
Then he discovered that his adorable student was the heir to a famous seafood family.
He looked at the mission, then at the boy's bright, resolute eyes.
Hagiwara's eyes curved into a smile.
Keep shining brightly, Tsuna-chan.
World Three: ...
Hagiwara worked very hard as he traveled from world to world.
All so that he could eventually go home and see his parents, his sister, and his childhood friend.
He would grin and tell them, "I'm home!"
Theme: May the world treat you gently