Happy ending but serious, angsty and deep BL dramas

Love stories that somehow delve into ”bigger” difficulties in life. Like coming to terms with your sexuality, dealing with trauma/mental illness, not having a supportive family and/or struggles as a single parent. All is not sunshine and rainbows but things still work out in the end. 

The untamed and Word of honor are "bromance" but their love stories are very obvious so I included them. 

PS. This list will be updated if I find more dramas that fit the bill.