Rikei ga Koi ni Ochita no de Shoumei shitemita. Heart
Science Fell in Love, So I Tried to Prove It r=1-sinθ, Science Fell in Love, So I Tried to Prove It 2nd Season, 理系が恋に落ちたので証明してみた。r=1-sinθ（ハート）
Second season of Rikei ga Koi ni Ochita no de Shoumei shitemita.
