Eiran is a boy whose parents have always focused on work since he was little, so he lives his days alone, eats alone, plays alone, even on his birthday

So you are hired to look after and raise Eiran until he is big now, until one day, Sad news emerges, regarding the death of Eiran's parents in a plane crash

You started to give him a will from his parents, he could only read the letter while crying and put the letter in his mouth to control himself