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"The little boy of the Zhou family fell into the river." "The little boy of the Zhou family will not survive this time." "Family this week, ugh..." ---- Wake up "Sister, be good, I'll give you some candy." "Mi'er, be good, your parents will bring you walnut cotton cakes from the town to eat." "Nanny, be good, let me boil brown sugar and egg water for you." ---- Became the family favorite "Master, I want to play with the leaves of the front mountain." "Milk, I want to eat chicken" "Dad, I want to..." "Mom, I want to..." "Brother, I want to..." Okay, it's all up to you...

"Ordinary" teenagers on two world lines, one overt and one dark organization, potential doomsday crisis, only change can change it.