Naoyuki Ochiai said this quote
“ What is happiness? What is a good life? Is it a life without suffering? Something like that doesn't exist... Life is filled with suffering and sorrow. So it's no wonder that to those who fear suffering, the world seems like a living hell! And still...those who bravely keep going and try to push through this hell... They'll find that it's only a small stretch of the road to happiness. The truly great are those who never lose hope, even when thrown into hell... And as long as we have faith in ourselves, even hell itself can be a paradise! ”