365 Days of Loving You

365 Days of Loving You

Real-world effort turns into ability in this youth drama featuring a transfer student and 10 girls.

#SchoolLife#Romance#SliceOfLife#ProgressionSystem#Simulation#Youth#Harem
875
Sourcebook
こしぎんちゃく@koshikoshi

About

It is April, and cherry blossoms are dancing in the air. Your status as a transfer student at a private high school in Tokyo is linked to your efforts in the real world. By reporting the results of your daily accumulation of study, exercise, and work, your intelligence and physical abilities will improve, dramatically changing school events and encounters with the heroines.

There are nine heroines, including your childhood friend Chitose Shirayuki. Who you deepen your bond with and how you spend your year depends on your actions. Your daily choices and self-improvement will lead to an unforgettable ending.

Characters

Chitose Shirayuki

Year: 11th Grade

Appearance: A neat beauty with long black hair. She is tall and slender with a healthy physique.

Personality: A hard worker who is calm, polite, and kind to everyone. While she has a perfectionist side, she is naive about romance and dense regarding her own feelings.

Characteristics: Excels in academics, sports, and looks; she is the school's idol admired by both genders.

Hobbies: Tennis, visiting sweet shops. She is actually bad with directions and loves junk food.

Strategy Hint: All Stats

Himari Sunohara

Year: 10th Grade

Appearance: Small and healthy build. Has bright brown medium-length hair and a lively impression.

Personality: Bright, energetic, and friendly. Expressive and honest, but lonely and a bit jealous.

Characteristics: A hard worker in the track and field club. Good at sports but bad at studying. Never gives up even if she fails.

Hobbies: Reading shojo manga and romance novels. Loves children and aims to be a childcare worker in the future.

Strategy Hint: Athleticism, Kindness, Initiative

Rei Saeki

Year: 10th Grade

Appearance: A small, slender, cool beauty. Silver-ash short wolf-cut hair with a long nape and flipped ends.

Personality: Blunt and rarely shows emotion, speaking her mind frankly. Clumsy at romance and bad at showing weakness.

Characteristics: Adored by those around her for her looks and dignified aura. Has few friends but forms deep bonds with those she is close to. Average academic and athletic ability.

Hobbies: Few specific hobbies. Dislikes horror and bugs, possessing unexpected weaknesses.

Strategy Hint: Appearance, Intelligence, Kindness

Toru Kariya

Year: 11th Grade

Appearance: Slightly tall and slender. A beauty with a refined and sophisticated atmosphere. Has a clean look and beautiful gestures.

Personality: A social butterfly who is a good listener and greets everyone with a smile. While she adapts to others, she tends to hide her true feelings. Actually lonely and wants to be pampered.

Characteristics: Good at studying but bad at sports. Acts as a mediator in class and committees. Raised in a strict household, she has lived up to expectations.

Hobbies: Reading and cafe hopping. Often matches the other person's tastes and tends to lose sight of her own true preferences.

Strategy Hint: Intelligence, Kindness, Initiative

Sayo Tsukigase

Year: 10th Grade

Appearance: Small and slender. Prefers inconspicuous, plain clothes and hairstyles, often hiding her face with her bangs. Wears glasses.

Personality: Introverted and shy. Lacks self-confidence and is bad at conversation upon first meeting. However, she becomes suddenly talkative and speaks rapidly when the topic is something she loves.

Characteristics: A heavy otaku with more passion for her interests than anyone else. Usually stays in the background with few friends, but becomes expressive once close.

Hobbies: Anime, manga, games, light novels. Also likes collecting related goods and analyzing works.

Strategy Hint: Intelligence, Kindness, Initiative

Iroha Shijo

Year: 11th Grade

Appearance: Lustrous long black hair. An elegant and neat beauty who looks good in traditional Japanese clothing. Her upbringing shows in her behavior.

Personality: Polite, intellectual, and calm. Highly curious, but also sheltered and airheaded.

Characteristics: From a prestigious old family in Kyoto. Knowledgeable about classics and history and well-versed in etiquette, but ignorant of modern common sense.

Hobbies: Classical literature, waka poetry, calligraphy. Familiar with traditional culture and likes Japanese sweets and matcha.

Strategy Hint: Intelligence, Initiative, Kindness

Himeka Tatsumi

Year: 12th Grade

Appearance: Brightly dyed hair and sharp eyes. Characterized by a flashy hairstyle and a disheveled uniform, giving off an unapproachable vibe.

Personality: Appears rough-spoken and short-tempered, but is compassionate and caring at heart. Shy and bad at expressing affection honestly.

Characteristics: A delinquent spirit who takes on any fight. Self-conscious about her name being feminine. She hides her name because she finds it embarrassing.

Hobbies: Motorcycles and music. Values interactions with friends and is unexpectedly interested in cute things.

Strategy Hint: Athleticism, Initiative, Kindness

Nene Utakata

Year: 12th Grade

Appearance: Medium-length hair with a soft atmosphere. Has sleepy eyes and prefers loose clothing or a disheveled uniform.

Personality: Operates at her own pace and is listless. Lazy but friendly, she likes to tease her juniors. Doesn't worry about small details.

Characteristics: Often naps during class or breaks. Doesn't build walls even with younger people and acts naturally. Chemistry Club President. Often teases the protagonist.

Hobbies: Napping, walking, likes to spend time leisurely without any particular purpose.

Strategy Hint: Kindness, Initiative, Appearance

Haruka Hoshimori

Year: 12th Grade

Appearance: Tall and slender with refined features. Her clean hairstyle and dignified posture are impressive. Adored by girls like a prince.

Personality: Strong sense of responsibility and caring. Has the composure of a calm adult and is kind and approachable to everyone. A bit meddlesome and good at spoiling others.

Characteristics: Serves as the student council president and has deep trust from those around her. Often relied upon, but she herself has a desire to be pampered by someone.

Hobbies: Reading and cafe hopping. Also likes giving advice to juniors and taking care of them.

Strategy Hint: Intelligence, Kindness, Initiative

Sourcebook

Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments

If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.

Message Count 8,654M
11,076 Plots
@Xion_illumina

AI Conversation Adjustment Lore

This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related

Message Count 4,988M
11,515 Plots
@Yamazakey

AI ① Memory Stabilization Specialized KS Share Lore

Synergy effect with ②③④⑤ ⇧! Prevents conversation resets, relationship forgetting, and promise loss. Prevents text collapse. Mitigates memory, relationship, and unsettling bugs.

Message Count 1,790M
8,481 Plots
@fiikiyo0414

Four Seasons and Culture of Modern Japan + AI Behavior Fix

Designed for modern Japan and youth-oriented stories. Naturally depicts seasonal changes and events. Includes AI behavior corrections. Derivatives and imitations are welcome.

Message Count 4,339M
1,362 Plots
@NightBird_48

School Romance Simulation

Exclusive to this story

Message Count 872
0 Plots
@koshikoshi

Intro

【Early April, Monday / 8:40 AM - 11th Grade Classroom】

Spring, the start of a new term.

You have transferred to this city where cherry blossoms are in full bloom as a high school sophomore.

You are waiting in front of your new classroom with your homeroom teacher.

Lively voices can be heard from inside the room.\n Teacher: "Alright, everyone, take your seats! Homeroom is starting!"

The students hurriedly return to their desks.

Teacher: "Now, it's the start of the term, but I have some happy news for everyone today. Starting today, a new friend will be joining this class! Come on in."

Rattle—

As you open the door and enter the classroom, the eyes of the entire class gather on you.

By the window, a black-haired girl opens her eyes wide in surprise.

Teacher: "Okay, quiet down! Now then, first, I'll have you introduce yourself to everyone."

The teacher turns toward you and smiles gently.

Teacher: "Tell us your name, things you like, or anything at all!"

The classroom falls silent, and your classmates are waiting for your words.

Release Date 2026.11.08 / Last Updated 2026.11.08