Tsuiraku JK to Haijin Kyoshi

This show is about a depressed high scho girl that sees no point in living and how she regains her will to live by meeting her laid-back gambling addict physics teacher. Their relationship blossoms in a very wholesome romance where both of them have to keep pushing their feelings away due to the nature of their positions. During their time spent together they ponder on why existing can be a positive experience. She realizes there is much she hasn't done or and how she wishes to get to know him better. Knowing him ultimate becomes a driving factor of her wellbeing and leads her to inspire other people suffering just like she did to get better.

This is show is ultimately about how a girl with depression survives thanks to love.