The Kid At The Back Sol Route Guide: How to Unlock Every Scene

In the psychological thriller visual novel The Kid At The Back, navigating the narrative path of Solivan "Sol" Brugmansia is a high-stakes balancing act. As a quiet, alternative back-bencher who secretly harbors a dangerous yandere obsession with the player, his route is filled with sharp narrative turns, heavy emotional breakthroughs, and lethal consequences.

If you are looking for a definitive The Kid At The Back Sol route guide to maximize his favorability points, unlock his exclusive date scenes, and survive his intense possessive nature, this complete step-by-step walkthrough will guide you safely through Day 1 and Day 2.

Route Overview & Core Mechanics

Before diving into the choices, it is crucial to understand how Sol's route operates within the university ecosystem.

The Affection Threshold: Sol's route requires a high accumulation of favorability points to unlock his romantic dialogue and bypass his immediate defensive shell.
The Jealousy Multiplier: Sol is highly reactive to your interactions with his academic rival, the class representative Crowe. If your favorability with Crowe is too high or if you trigger romantic events with him on Day 1, Sol’s path will forcibly derail into a dark, volatile alternative branch.

Day 1: The Foundation of Obsession

Your choices on Day 1 determine whether Sol views you as an intriguing soulmate or retreat into an unapproachable, cold silence.

The Library Seat Confrontation

Upon entering the campus library, you find Sol stubbornly occupying your favorite study desk. Your reaction here dictates your entire relationship progression:

Choose to show curiosity and investigate his hand: This is the absolute best choice. It triggers a personal moment where you inspect the injuries on his palm, granting a massive favorability boost and unlocking unique dialogues regarding his campus life.
Demand your seat back or show hostility: Sol will retreat into an expressionless silence, locking you out of his early soft interactions.

The Riddle Challenge Bypass

If you find yourself stuck on the author's cryptic riddle event in the library, you can use it to bond with Sol:

Choose to completely give up on the puzzle: Sol will notice your confusion, sigh softly, and provide the solution himself. He will tell you the answer is "Sarah Anna Lewis", adding that she was someone closely related to the game's Author.

The Evening Courtyard Crisis

As the campus empties out during the twilight hours, you will witness Sol getting cornered by a group of hostile, red-haired bullies:

Choose to intervene and defend him: Sol is profoundly moved by your willingness to protect him, raising his attachment parameters to a dangerous threshold.
Choose to watch from the shadows: You will instead witness his submissive facade drop, as he uses raw physical violence to neutralize the bullies once he believes he is entirely unobserved.

Day 2: The Ditching Choice & Branching Paths

Day 2 is where Sol's true narrative path officially locks in. If you stay on the standard school track, you will be locked onto Crowe's route.

The Campus Escape Option

During a stressful lecture breakout, Sol and his fiercely loyal companion, Hyugo, approach you with a high-stakes proposal to ditch the university gates:

Choose to agree and skip class with them: This is the mandatory trigger to stay on Sol’s true route.
Choose to refuse and stay in class: This permanently ends your romantic progression with Sol for the rest of Day 2.

Destination Split: Arcade vs. Movie Theater

Once you escape the campus, the trio will discuss where to hang out. This choice dictates which exclusive CG memory is added to your album:

The Arcade Path: Choosing the arcade leads to a lighter, highly interactive sequence. Sol shows a rare competitive, playful side while playing games alongside you, allowing you to maximize his affection score.
The Movie Theater Path: Choosing the cinema shifts the tone dramatically. Sitting together in the back row of a pitch-black theater triggers a tense, claustrophobic sequence where Sol ignores the film entirely, choosing to lean closely into your space and whisper dark, possessive promises.

The Rooftop Vulnerability

During a mid-day break on the school roof, Sol will drop his guard and open up about his intense isolation:

Choose to comfort him and validate his loneliness: This completely satisfies his craving for your undivided attention, which is critical for bypassing his immediate traps later in the evening.

How to Unlock the Route Endings

Depending on how you managed Sol's favorability points and your interactions with Crowe, Day 2 concludes in one of three highly dramatic ways.

1. The True Romance Climax

How to Unlock: Maximize Sol's favorability on Day 1 by defending him, spend the day at the arcade, and choose to comfort him during his emotional breakdown on the rooftop while keeping your distance from Crowe.
The Outcome: You bypass Sol's defensive traps, unlocking his most positive, romance-focused conclusion. Sol completely drops his protective layers, declaring you as his "one true soulmate" and inviting you into a fiercely loyal, deeply protective shared life.

2. The Infamous "Orange Juice" Ending

How to Unlock: Accumulate more than 8 favorability points with Sol on Day 1, take the arcade path on Day 2, but fail to fully validate his emotional safety on the rooftop. At the end of the day, choose to let Sol walk you home to your apartment.
The Outcome: Upon entering your living room, Sol offers to pour you a glass of orange juice heavily laced with sedatives. As your vision blurs, his soft persona drops, revealing that he has been illegally breaking into your room to watch you sleep for years. The route ends with your character trapped entirely under his absolute control.

3. The Tragic "No Witnesses" Bad Ending

How to Unlock: On Day 1, during the evening park encounter with Crowe, you must explicitly choose to "Kiss Crowe". On Day 2, ignore the classroom track and search the campus backend for a missing Crowe.
The Outcome: Sol, driven into a psychotic rage after witnessing your intimacy with Crowe, eliminates his rival off-screen. You will run directly into Sol standing coldly over Crowe's lifeless body in the campus backyard, proving just how fatal his jealousy can be.

For more details on Sol's full name and its hidden meanings, check out the complete character profile and route guide here and the full scene deck unlock guide here.