'Goodbye Mom'-- daughter dealing with moms death
'A trace of the wonder'-- story mostly about action but also about mc dealing with death too and survivors guilt
'Homeless/no home'-- this is a mix of stuff, but one of the theme is processing grief too
'Three days of happiness'-- doesn't quite fit the theme, but you could say it's a loss of will of life, it's a hopeful work
'Happy birthday'-- might be slightly controversial work
'Knitting corner'-- loss of family and healing
'Mother I'm sorry'--small part of story deals with grief but it's a good story
'Fukyagaku-sei no Himawari'-- it's supernatural, but also deals with death

Is there a manga or manwha about dealing with/processing grief?? Like my little Mariko??