Heart Signal / Season 1 Season guide Heart Signal: Season 1 15 episodes Premiered Jun 2, 2017 Updated Oct 3, 2026 Spoiler-safe Advertisement Season 1 Episodes Episode Guide 🛡️ SPOILER SHIELD Season 1 Progress Shield All Safe I'm Watching Caught Up Season: Season 1 Last Watched: None (Not started) Episode 1 Episode 2 Episode 3 Episode 4 Episode 5 Episode 6 Episode 7 Episode 8 Episode 9 Episode 10 Episode 11 Episode 12 Episode 13 Episode 14 Episode 15 Future titles & synopses blurred. Tap "Reveal" on any card to peek. Binge Efficiency Engine Season 1: Filler vs. Essential Canon Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests. 20% 80% Mytharc (3): Crucial lore & season climaxes Core (12): Character development & subplots Side Quest (0): Standalone / filler Show All (15) Crucial Mytharc (3) Essential Canon (15) S1·E1 Mytharc Episode 1 Jun 2, 2017 · 90 min S1·E2 Core Episode 2 Jun 9, 2017 · 90 min S1·E3 Core Episode 3 Jun 16, 2017 · 90 min S1·E4 Core Episode 4 Jun 23, 2017 · 90 min S1·E5 Core Episode 5 Jun 30, 2017 · 90 min S1·E6 Core Episode 6 Jul 7, 2017 · 90 min S1·E7 Core Episode 7 Jul 21, 2017 · 90 min S1·E8 Core Episode 8 Jul 28, 2017 · 90 min S1·E9 Core Episode 9 Aug 4, 2017 · 90 min S1·E10 Core Episode 10 Aug 11, 2017 · 90 min S1·E11 Core Episode 11 Aug 18, 2017 · 90 min S1·E12 Core Episode 12 Aug 18, 2017 · 90 min S1·E13 Core Episode 13 Sep 1, 2017 · 90 min S1·E14 Mytharc Episode 14 Sep 2, 2017 · 90 min S1·E15 Mytharc Episode 15 Sep 14, 2017 · 90 min Advertisement