Aiyoku no Eustia Full Walkthrough: Complete Route Guide & All Endings

The worst part about playing Aiyoku no Eustia is rushing straight through the main story and missing entire character routes. This walkthrough follows the optimal order—complete all heroine routes before heading into Tia's path to experience the full narrative without regrets. Each character ending unlocks exclusive bonus content, so make sure to go back and collect them all.

New Players Must Read: This game uses a linear main story with branching points. Charging ahead without saving will lock you out of tons of content. I recommend following this order: Fione → Eris → Colette → Rafaria → Licia → Tia. This progression builds the story layer by layer, and the emotional impact of Tia's route hits hardest when saved for last. Save points are marked below—just follow along.

Table of Contents

I. Prologue Choices

II. Fione Route (Chapter 1)

III. Eris Route (Chapter 2)

IV. Colette Route (Chapter 3)

V. Rafaria Route (Chapter 3)

VI. Licia Route (Chapter 4)

VII. Tia Route (Chapter 5 · True Ending)

I. Prologue Choices

Try to appease her

Fight

But Tia probably wasn't lying

II. Fione Route (Chapter 1)

Save as soon as you enter Chapter 1—this is the first branching point.

SAVE 1

1. Choice: Show it to Fione here

2. Choice: I'm working with Fione, so I'll go with just the two of us

3. Choice: Deny it outright

4. Choice: Can't let Fione's hands be stained with her family's blood

Fione END achieved

Load SAVE 1

1. Choice: Should probably take it back to Sieg first

2. Choice: Go to Eris's house alone

3. Choice: It'd be easier to talk if I agreed

Proceed to Chapter 2

III. Eris Route (Chapter 2)

Was that a path too?

Even so, I won't kill

SAVE 2

1. Choice: Walk the path together with Eris

2. Choice: Not going to take off your glasses? / ...That's surprisingly bold

Eris END achieved

Load SAVE 2

1. Choice: Even so, let Eris walk her own path

Proceed to Chapter 3

IV. Colette Route (Chapter 3 · Saintess Route)

SAVE 3

1. Choice: Grant Colette's wish

Colette END achieved

V. Rafaria Route (Chapter 3 · Saintess Route Branch)

Load SAVE 3

1. Choice: I really can't do something like that

SAVE 4

2. Choice: I believe in both of them

Rafaria END achieved

Load SAVE 4

1. Choice: I haven't fully believed yet either

Proceed to Chapter 4

VI. Licia Route (Chapter 4 · Princess Route)

Wipe her face

Apologize to Licia

SAVE 5

1. Choice: Accept her weakness along with her

Licia END achieved

Load SAVE 5

1. Choice: Cannot accept Licia's prayer

Proceed to Chapter 5

VII. Tia Route (Chapter 5 · True Ending)

Tell the truth

Tia END achieved

Completion Note: After finishing all character routes, the title screen will unlock the "Last Episode" finale—make sure to watch it for the complete ending. Bonus content includes after-stories for each heroine that fill in additional story details.