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Season guide

Heaven's Lost Property: Heaven's Lost Property

13 episodes Premiered Oct 5, 2009 Updated Oct 25, 2026

Tomoki Sakurai frequently encounters a strange girl in his dreams who asks for his assistance, although he is unable to recall her facial features upon waking up. His accustomed life characterized by pacifism undergoes a sudden and significant complication when an Unidentified Mysterious Animal drops out of the sky. This unusual arrival is subsequently revealed to be an angel named Ikaros. As the narrative unfolds, T

Previously on Heaven's Lost Property

Season 1 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Tomoki Sakurai lives a life of pacifism.
  • ⚡ Tomoki frequently encounters a strange girl in his dreams who asks for his help.
  • ⚡ Tomoki cannot remember the face of the girl from his dreams when he wakes up.
  • ⚡ An Unidentified Mysterious Animal falls out of the sky and turns out to be an angel named Ikaros.
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Season overview

Tomoki Sakurai frequently encounters a strange girl in his dreams who asks for his assistance, although he is unable to recall her facial features upon waking up. His accustomed life characterized by pacifism undergoes a sudden and significant complication when an Unidentified Mysterious Animal drops out of the sky. This unusual arrival is subsequently revealed to be an angel named Ikaros. As the narrative unfolds, Tomoki must navigate the dramatic disruption to his everyday routine brought about by the presence of this celestial visitor. The situation introduces extraordinary elements into his previously quiet existence, intertwining his daily reality with the mystery of the girl from his dreams and the sudden appearance of the angel Ikaros from above.

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Season 1 Episodes

Episode Guide

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Binge Efficiency Engine

Season 1: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

31%
69%
Mytharc (4): Crucial lore & season climaxes
Core (9): Character development & subplots
Side Quest (0): Standalone / filler
S1·E1 Mytharc

A 'Naked' Hero Arises!

Oct 5, 2009 · 25 min

"Peace and quiet is the best!" That's the motto of everyday high schooler, Tomoki Sakurai. But his peaceful life is being torn apart after the girl Ikaros suddenly fell from the sk

S1·E2 Core

Heavenly Romance

Oct 12, 2009 · 25 min

Sohara is in a bad mood after seeing Sakurai on top of Ikaros and getting the wrong idea. Ikaros hastily chases after her and, as such, Ikaros follows him to school. A card that Sa

S1·E3 Core

An Angeloid's First Order

Oct 19, 2009 · 25 min

Tomoki, suffering from a never-ending amount of math homework, decides to have Sugata-senpai help him out. President Satsukitane leads him to Sugata's home, only to find that it's

S1·E4 Core

Love and a Triangle — Again

Oct 26, 2009 · 25 min

The flock of panties that flew off into the sky in Episode 2 have returned to Tomoki! Tomoki is estatic, but Sohara uses one of Ikaros's cards to make it so that any panties Tomoki

S1·E5 Core

A Steamy Night with a Big Shot

Nov 2, 2009 · 25 min

Long story short, Tomoki's house is destroyed. Wandering aimlessly, in search of a place to stay, Tomoki and Ikaros are lent a hand by the class president, Satsukitane. Sohara and

S1·E6 Core

Swimsuit Troops Go! Go! Go!

Nov 9, 2009 · 25 min

Summer vacation. The entire New World Discovery Club heads to the beach. Tomoki is surrounded by attractive girls in their swimsuits, but ends up having to deal with Ikaros. Sohara

S1·E7 Core

The 'Cute' New Girls

Nov 16, 2009 · 25 min

Ikaros and Nymph also settle down in Sakurai's house. They get bored while Itsuki is at school, use a card, and transfer into his school! They instantly become popular as two new b

S1·E8 Core

For Whom is the Festival Thrown?

Nov 23, 2009 · 25 min

A fun festival in Sorami town. But, at the student body president's suggestion, the entire town is turned into a survival game! The winner gets $100,000! Gunfire and shrieks fill t

S1·E9 Core

A Story that Starts with a Lie

Nov 30, 2009 · 25 min

Tomoki and the gang go to an outdoor BBQ. Tomoki tries to open a stall to make some money, but no matter what he does it fails. Then he gets Nymph's help to open a host club! Meanw

S1·E10 Mytharc

Where the Words of Angels Go

Dec 7, 2009 · 25 min

It's a musical showdown at the Cultural Fair! Ikaros is the star of the show when Tomoki and the gang put a band together and take on the classical orchestra of the nearby private

S1·E11 Core

Let's Go! My Paradise

Dec 14, 2009 · 25 min

Tomoki's on a mission to sneak into the girls' bathing area. With Sugata's assistance (and one of Ikaros's cards) he devises the perfect disguise to accomplish his goal: he transfo

S1·E12 Mytharc

The Chain Which Doesn't Grant Escape

Dec 21, 2009 · 25 min

No matter how hard their friends try to help, Ikaros and Nymph just can't seem to crack a smile. After the Angeloids decide to work on the problem together, they take Tomoki out on

S1·E13 Mytharc

Heaven's Lost Property

Dec 28, 2009 · 25 min

After surprising Tomoki with a sudden farewell, Ikaros endures a treacherous encounter with Harpy and Gamma. If Ikaros can find a way to defeat them, she may finally break her chai

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