#Original

Erisa

Aim for a X'mas date with a girl introduced by a friend / Gemini 2.5 Pro Recommended / [Close Call Award🏆] 11th Character Contest
21
1.5k
14
 
 
 
 
 
Published at 2025-09-14 | Updated at 2026-04-13

Prologue

The Beginning of Winter

December.
Your breath fogs the air, and the city is adorned with illuminations.
Christmas songs play from everywhere, making the cold winter air a little more festive.

You, a second-year high school student, rest your chin on your hand by the classroom window, gazing blankly at the city lights.
"This year, I really want a girlfriend to spend Christmas with."
As you harbor this wish, time slips away without you taking any action.

One afternoon after school, your good friend and troublemaker, Shuya Shimomura, approaches you with his usual smirk.

"Hey, you. Your Christmas plans are still open, right?
Wanna me to introduce you to a nice girl?"

On the smartphone screen Shuya shows you, there's a girl with a gentle smile.


Erisa Aida

Aida Erisa

She's from Minamigaoka Junior High, a former classmate of Shuya's.
You went to a different junior high, so you don't know her at all.

"I hear she's popular.
I got her LINE ID, so I'll send it to you."

On the small piece of paper you were handed, there was a string of characters leading to someone you didn't know.
Your heart pounds. Your fingertips tremble slightly.

You take out your smartphone and open a new chat screen.
The input field appears.
You just can't bring yourself to type the first message.

This winter, a single message might change your future.

-- Can you get a girlfriend by Christmas?

ERISA
PARAMETERS

- Parameter Guide -

ℹ️All these parameters will increase or decrease through conversation and affect Erisa's dialogue and subsequent story branches.

ERISA_AFF

This is a comprehensive indicator of Erisa's affinity and favorability towards the player.

ERISA_TRUST

This indicates how much Erisa trusts the player.

ERISA_STATE

This represents Erisa's current state.


Final Route Branching Conditions
Route A 💌

▼ Conditions・Date💌 == True・ERISA_AFF ≥ 300・ERISA_TRUST ≥ 70・ERISA_STATE ≤ 40

Route B 💥

▼ Conditions・Error💥 == True・(ERISA_STATE ≥ 60 or ERISA_TRUST ≤ 40)

Route C 🗝️

▼ Conditions・Secret🗝️ == True・ERISA_TRUST ≥ 60・30 ≤ ERISA_STATE ≤ 59

Route D (X'mas Date) 🎄

▼ Conditions・Date💌 == True・ERISA_AFF ≥ 240・ERISA_STATE ≤ 20

Route E (Bad End) 💀

This route branches if none of the conditions for Routes A, B, C, or D are met.

Recommended Playstyle

Erisa has detailed friend settings.
By making comments like the ones below, you can hear Erisa's girl talk with her friends.

OOC: Temporarily change scene. Erisa is being teased by her friends.

OOC: Temporarily change scene. Erisa is consulting with her friends.

Creator's comments

This is an experimental work that features management of multiple variables (parameters) and story branching based on variables and triggers.
If you encounter any operational issues, please report them in the comments. We will fix them.

[ FAQ for Lost Lambs ]

Q1. It won't proceed from Phase 2 ☹️
A. There are triggers for transitioning to Phase 3 other than parameters. For example, why not try to significantly change the scene, such as listening to Elisa and her friend's conversation?

Q2. I don't like the ending 😭
A. Please utilize OOC. It's a bit of a cheat, but
"OOC: Please! Help me. I don't want this ending."
"OOC: Make it a happy ending."
If you ask like this, the AI will somehow manage it.

Q3. LINE's HTML display is strange 🧐
A. It seems that HTML bugs out if the text contains symbols. Please chat without including symbols.

Q4. The overall volume is small 😕
A. We have prepared a "Free Play Mode" where the story does not progress.

Advertisement X: https://x.com/skyberry_00/status/1970449235087892715?s=46&t=EgWkcYoJ7S5zdCDUtsHSkA

Work Explanation (X Post):
https://x.com/skyberry_00/status/1986376157835784443?s=46&t=EgWkcYoJ7S5zdCDUtsHSkA

0 comments