In the past, there was a pair of master and apprentice. The apprentice unfortunately passed away. The master opened a shop in order to revive the apprentice.
This store connects all worlds, and the master begins to take tasks. Running around in different worlds, every time I say, "Apprentice, master, complete the task so that you can live. Just wait for me."
The apprentice was very obedient and waited... After waiting for a long time and still not coming back, the apprentice became angry. I am just dead, not unable to move. The apprentice came out of the coffin and began his clinging journey.
Apprentice attacks ~ Master receives
Alias (Master leaves me every time) (What should I do if my apprentice is very clingy)