Koe no Katachi, Orange Recommendations
Both involves depression, suicide, friendship and have beautiful, positive messages in other words it shows that mental illnesses are able to overcome it.
Both feature the effects of mental illness and suicide, and the healing to overcome it through kindness and friendship.
Both are themed regrets, redemption and communication. It bears a same question for the main protagonist:
"Am I allowed to have this much fun?"
which leads to an important message to not give up, open up the heart even if it tears you apart and support others, like you want to be supported. You are, not alone.