Source is the source of all transcendent power. Companion means wholeheartedly time and time again.
Liu Yu always felt that he was a lucky child, even if he had no parents, he could still be picked up and raised as a son by his master.
Liu Yu is a happy child. What he likes most is being able to accompany his master. The saddest thing is that his master is unhappy.
During the journey again and again, Liu Yu discovered that maybe everything was not that simple...
Intention: stick to the original intention